diff --git a/src/generated/resources/.cache/b6658e94d9c7ecb8e7f48d7838aba9405dd47577 b/src/generated/resources/.cache/b6658e94d9c7ecb8e7f48d7838aba9405dd47577
index 0a7a6b4cd..acf484510 100644
--- a/src/generated/resources/.cache/b6658e94d9c7ecb8e7f48d7838aba9405dd47577
+++ b/src/generated/resources/.cache/b6658e94d9c7ecb8e7f48d7838aba9405dd47577
@@ -1,3 +1,4 @@
-// 1.21.1	2025-06-12T21:56:29.8001208	Tags for minecraft:entity_type mod id superbwarfare
+// 1.21.1	2025-06-17T18:58:56.229726	Tags for minecraft:entity_type mod id superbwarfare
 4b66f399cf351dc05891ad11d0e94889962a4327 data/superbwarfare/tags/entity_type/aerial_bomb.json
+831bbb12a31a9fd9a731e812b690d09d70ade7e9 data/superbwarfare/tags/entity_type/decoy.json
 dab439adf745fde8ee3ecf56a40c617dfedc9c47 data/superbwarfare/tags/entity_type/destroyable_projectile.json
diff --git a/src/generated/resources/data/superbwarfare/tags/entity_type/decoy.json b/src/generated/resources/data/superbwarfare/tags/entity_type/decoy.json
new file mode 100644
index 000000000..ed2ccb454
--- /dev/null
+++ b/src/generated/resources/data/superbwarfare/tags/entity_type/decoy.json
@@ -0,0 +1,6 @@
+{
+  "values": [
+    "superbwarfare:smoke_decoy",
+    "superbwarfare:flare_decoy"
+  ]
+}
\ No newline at end of file
diff --git a/src/main/java/com/atsuishio/superbwarfare/datagen/ModEntityTypeTagProvider.java b/src/main/java/com/atsuishio/superbwarfare/datagen/ModEntityTypeTagProvider.java
index a5c45dfce..10b41401b 100644
--- a/src/main/java/com/atsuishio/superbwarfare/datagen/ModEntityTypeTagProvider.java
+++ b/src/main/java/com/atsuishio/superbwarfare/datagen/ModEntityTypeTagProvider.java
@@ -37,6 +37,11 @@ public class ModEntityTypeTagProvider extends EntityTypeTagsProvider {
                 ModEntities.SWARM_DRONE.get(),
                 ModEntities.WG_MISSILE.get()
         );
+
+        this.tag(ModTags.EntityTypes.DECOY).add(
+                ModEntities.SMOKE_DECOY.get(),
+                ModEntities.FLARE_DECOY.get()
+        );
     }
 
     public static TagKey<EntityType<?>> cTag(String name) {
diff --git a/src/main/java/com/atsuishio/superbwarfare/entity/projectile/Agm65Entity.java b/src/main/java/com/atsuishio/superbwarfare/entity/projectile/Agm65Entity.java
index 2365a20bb..67189f7ad 100644
--- a/src/main/java/com/atsuishio/superbwarfare/entity/projectile/Agm65Entity.java
+++ b/src/main/java/com/atsuishio/superbwarfare/entity/projectile/Agm65Entity.java
@@ -2,10 +2,7 @@ package com.atsuishio.superbwarfare.entity.projectile;
 
 import com.atsuishio.superbwarfare.config.server.ExplosionConfig;
 import com.atsuishio.superbwarfare.entity.vehicle.base.VehicleEntity;
-import com.atsuishio.superbwarfare.init.ModDamageTypes;
-import com.atsuishio.superbwarfare.init.ModEntities;
-import com.atsuishio.superbwarfare.init.ModItems;
-import com.atsuishio.superbwarfare.init.ModSounds;
+import com.atsuishio.superbwarfare.init.*;
 import com.atsuishio.superbwarfare.network.message.receive.ClientIndicatorMessage;
 import com.atsuishio.superbwarfare.tools.*;
 import net.minecraft.core.BlockPos;
@@ -57,7 +54,6 @@ public class Agm65Entity extends FastThrowableProjectile implements GeoEntity, E
     private float explosionDamage = ExplosionConfig.AGM_65_EXPLOSION_DAMAGE.get();
     private float explosionRadius = ExplosionConfig.AGM_65_EXPLOSION_RADIUS.get().floatValue();
     private boolean distracted = false;
-
     private int durability = 100;
 
     public Agm65Entity(EntityType<? extends Agm65Entity> type, Level world) {
@@ -244,9 +240,10 @@ public class Agm65Entity extends FastThrowableProjectile implements GeoEntity, E
         List<Entity> decoy = SeekTool.seekLivingEntities(this, this.level(), 32, 90);
 
         for (var e : decoy) {
-            if (e instanceof DecoyEntity decoyEntity && !distracted) {
-                this.entityData.set(TARGET_UUID, decoyEntity.getDecoyUUID());
-                distracted = true;
+            if (e.getType().is(ModTags.EntityTypes.DECOY) && !this.distracted) {
+                this.entityData.set(TARGET_UUID, e.getStringUUID());
+                this.distracted = true;
+                break;
             }
         }
 
diff --git a/src/main/java/com/atsuishio/superbwarfare/entity/projectile/DecoyEntity.java b/src/main/java/com/atsuishio/superbwarfare/entity/projectile/DecoyEntity.java
deleted file mode 100644
index 27690c75f..000000000
--- a/src/main/java/com/atsuishio/superbwarfare/entity/projectile/DecoyEntity.java
+++ /dev/null
@@ -1,10 +0,0 @@
-package com.atsuishio.superbwarfare.entity.projectile;
-
-import net.minecraft.world.phys.Vec3;
-
-public interface DecoyEntity {
-
-    String getDecoyUUID();
-
-    Vec3 getPosition();
-}
diff --git a/src/main/java/com/atsuishio/superbwarfare/entity/projectile/FlareDecoyEntity.java b/src/main/java/com/atsuishio/superbwarfare/entity/projectile/FlareDecoyEntity.java
index 0bca9700c..e3a2ffef8 100644
--- a/src/main/java/com/atsuishio/superbwarfare/entity/projectile/FlareDecoyEntity.java
+++ b/src/main/java/com/atsuishio/superbwarfare/entity/projectile/FlareDecoyEntity.java
@@ -14,7 +14,7 @@ import net.minecraft.world.level.Level;
 import net.minecraft.world.phys.Vec3;
 import org.jetbrains.annotations.NotNull;
 
-public class FlareDecoyEntity extends Entity implements DecoyEntity {
+public class FlareDecoyEntity extends Entity {
 
     public FlareDecoyEntity(EntityType<? extends FlareDecoyEntity> type, Level world) {
         super(type, world);
@@ -61,14 +61,4 @@ public class FlareDecoyEntity extends Entity implements DecoyEntity {
         this.yRotO = this.getYRot();
         this.xRotO = this.getXRot();
     }
-
-    @Override
-    public String getDecoyUUID() {
-        return this.getStringUUID();
-    }
-
-    @Override
-    public Vec3 getPosition() {
-        return position();
-    }
 }
diff --git a/src/main/java/com/atsuishio/superbwarfare/entity/projectile/JavelinMissileEntity.java b/src/main/java/com/atsuishio/superbwarfare/entity/projectile/JavelinMissileEntity.java
index f7b6acfa2..16beb6f3e 100644
--- a/src/main/java/com/atsuishio/superbwarfare/entity/projectile/JavelinMissileEntity.java
+++ b/src/main/java/com/atsuishio/superbwarfare/entity/projectile/JavelinMissileEntity.java
@@ -2,10 +2,7 @@ package com.atsuishio.superbwarfare.entity.projectile;
 
 import com.atsuishio.superbwarfare.config.server.ExplosionConfig;
 import com.atsuishio.superbwarfare.entity.vehicle.base.VehicleEntity;
-import com.atsuishio.superbwarfare.init.ModDamageTypes;
-import com.atsuishio.superbwarfare.init.ModEntities;
-import com.atsuishio.superbwarfare.init.ModItems;
-import com.atsuishio.superbwarfare.init.ModSounds;
+import com.atsuishio.superbwarfare.init.*;
 import com.atsuishio.superbwarfare.network.message.receive.ClientIndicatorMessage;
 import com.atsuishio.superbwarfare.tools.*;
 import net.minecraft.core.BlockPos;
@@ -292,9 +289,10 @@ public class JavelinMissileEntity extends FastThrowableProjectile implements Geo
         List<Entity> decoy = SeekTool.seekLivingEntities(this, this.level(), 32, 90);
 
         for (var e : decoy) {
-            if (e instanceof DecoyEntity decoyEntity && !distracted) {
-                this.entityData.set(TARGET_UUID, decoyEntity.getDecoyUUID());
-                distracted = true;
+            if (e.getType().is(ModTags.EntityTypes.DECOY) && !this.distracted) {
+                this.entityData.set(TARGET_UUID, e.getStringUUID());
+                this.distracted = true;
+                break;
             }
         }
 
diff --git a/src/main/java/com/atsuishio/superbwarfare/entity/projectile/SmokeDecoyEntity.java b/src/main/java/com/atsuishio/superbwarfare/entity/projectile/SmokeDecoyEntity.java
index 52b7fb2ab..de856e5c8 100644
--- a/src/main/java/com/atsuishio/superbwarfare/entity/projectile/SmokeDecoyEntity.java
+++ b/src/main/java/com/atsuishio/superbwarfare/entity/projectile/SmokeDecoyEntity.java
@@ -16,7 +16,7 @@ import net.minecraft.world.level.Level;
 import net.minecraft.world.phys.Vec3;
 import org.jetbrains.annotations.NotNull;
 
-public class SmokeDecoyEntity extends Entity implements DecoyEntity {
+public class SmokeDecoyEntity extends Entity {
 
     public SmokeDecoyEntity(EntityType<? extends SmokeDecoyEntity> type, Level world) {
         super(type, world);
@@ -78,14 +78,4 @@ public class SmokeDecoyEntity extends Entity implements DecoyEntity {
         this.yRotO = this.getYRot();
         this.xRotO = this.getXRot();
     }
-
-    @Override
-    public Vec3 getPosition() {
-        return position();
-    }
-
-    @Override
-    public String getDecoyUUID() {
-        return this.getStringUUID();
-    }
 }
diff --git a/src/main/java/com/atsuishio/superbwarfare/entity/projectile/SwarmDroneEntity.java b/src/main/java/com/atsuishio/superbwarfare/entity/projectile/SwarmDroneEntity.java
index 97f3190f9..6361a2e0c 100644
--- a/src/main/java/com/atsuishio/superbwarfare/entity/projectile/SwarmDroneEntity.java
+++ b/src/main/java/com/atsuishio/superbwarfare/entity/projectile/SwarmDroneEntity.java
@@ -1,10 +1,7 @@
 package com.atsuishio.superbwarfare.entity.projectile;
 
 import com.atsuishio.superbwarfare.config.server.ExplosionConfig;
-import com.atsuishio.superbwarfare.init.ModDamageTypes;
-import com.atsuishio.superbwarfare.init.ModEntities;
-import com.atsuishio.superbwarfare.init.ModItems;
-import com.atsuishio.superbwarfare.init.ModSounds;
+import com.atsuishio.superbwarfare.init.*;
 import com.atsuishio.superbwarfare.network.message.receive.ClientIndicatorMessage;
 import com.atsuishio.superbwarfare.tools.CustomExplosion;
 import com.atsuishio.superbwarfare.tools.EntityFindUtil;
@@ -212,9 +209,10 @@ public class SwarmDroneEntity extends FastThrowableProjectile implements GeoEnti
         List<Entity> decoy = SeekTool.seekLivingEntities(this, this.level(), 32, 90);
 
         for (var e : decoy) {
-            if (e instanceof DecoyEntity decoyEntity && !distracted) {
-                this.entityData.set(TARGET_UUID, decoyEntity.getDecoyUUID());
-                distracted = true;
+            if (e.getType().is(ModTags.EntityTypes.DECOY) && !this.distracted) {
+                this.entityData.set(TARGET_UUID, e.getStringUUID());
+                this.distracted = true;
+                break;
             }
         }
 
diff --git a/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/DroneEntity.java b/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/DroneEntity.java
index 4330d1072..c4e06c24a 100644
--- a/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/DroneEntity.java
+++ b/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/DroneEntity.java
@@ -6,6 +6,7 @@ import com.atsuishio.superbwarfare.entity.vehicle.base.MobileVehicleEntity;
 import com.atsuishio.superbwarfare.init.ModDamageTypes;
 import com.atsuishio.superbwarfare.init.ModItems;
 import com.atsuishio.superbwarfare.init.ModSounds;
+import com.atsuishio.superbwarfare.init.ModTags;
 import com.atsuishio.superbwarfare.item.Monitor;
 import com.atsuishio.superbwarfare.item.common.ammo.MortarShell;
 import com.atsuishio.superbwarfare.tools.CustomExplosion;
@@ -98,10 +99,6 @@ public class DroneEntity extends MobileVehicleEntity implements GeoEntity {
         return Mth.lerp(0.6f * tickDelta, pitchO, getBodyPitch());
     }
 
-    public DroneEntity(EntityType<? extends DroneEntity> type, Level world, float moveX, float moveY, float moveZ) {
-        super(type, world);
-    }
-
     @Override
     protected void defineSynchedData(SynchedEntityData.Builder builder) {
         super.defineSynchedData(builder);
@@ -443,7 +440,8 @@ public class DroneEntity extends MobileVehicleEntity implements GeoEntity {
         final Vec3 center = new Vec3(this.getX(), this.getY(), this.getZ());
         for (Entity target : level.getEntitiesOfClass(Entity.class, aabb, e -> true).stream().sorted(Comparator.comparingDouble(e -> e.distanceToSqr(center))).toList()) {
             if (this != target && target != null
-                    && !(target instanceof ItemEntity || target instanceof Projectile || target instanceof ProjectileEntity || target instanceof LaserEntity || target instanceof DecoyEntity || target instanceof AreaEffectCloud || target instanceof C4Entity)) {
+                    && !(target instanceof ItemEntity || target instanceof Projectile || target instanceof ProjectileEntity || target instanceof LaserEntity
+                    || target.getType().is(ModTags.EntityTypes.DECOY) || target instanceof AreaEffectCloud || target instanceof C4Entity)) {
                 hitEntityCrash(controller, target);
             }
         }
diff --git a/src/main/java/com/atsuishio/superbwarfare/init/ModTags.java b/src/main/java/com/atsuishio/superbwarfare/init/ModTags.java
index ef8429866..592d9f033 100644
--- a/src/main/java/com/atsuishio/superbwarfare/init/ModTags.java
+++ b/src/main/java/com/atsuishio/superbwarfare/init/ModTags.java
@@ -68,6 +68,7 @@ public class ModTags {
     public static class EntityTypes {
         public static final TagKey<EntityType<?>> AERIAL_BOMB = tag("aerial_bomb");
         public static final TagKey<EntityType<?>> DESTROYABLE_PROJECTILE = tag("destroyable_projectile");
+        public static final TagKey<EntityType<?>> DECOY = tag("decoy");
 
         private static TagKey<EntityType<?>> tag(String name) {
             return TagKey.create(Registries.ENTITY_TYPE, Mod.loc(name));
diff --git a/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/JavelinItem.java b/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/JavelinItem.java
index 532bd12dd..7b2b32259 100644
--- a/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/JavelinItem.java
+++ b/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/JavelinItem.java
@@ -4,12 +4,12 @@ import com.atsuishio.superbwarfare.Mod;
 import com.atsuishio.superbwarfare.client.renderer.gun.JavelinItemRenderer;
 import com.atsuishio.superbwarfare.client.tooltip.component.LauncherImageComponent;
 import com.atsuishio.superbwarfare.data.gun.GunData;
-import com.atsuishio.superbwarfare.entity.projectile.DecoyEntity;
 import com.atsuishio.superbwarfare.entity.projectile.JavelinMissileEntity;
 import com.atsuishio.superbwarfare.entity.vehicle.base.VehicleEntity;
 import com.atsuishio.superbwarfare.event.ClientEventHandler;
 import com.atsuishio.superbwarfare.init.ModEnumExtensions;
 import com.atsuishio.superbwarfare.init.ModSounds;
+import com.atsuishio.superbwarfare.init.ModTags;
 import com.atsuishio.superbwarfare.item.gun.GunItem;
 import com.atsuishio.superbwarfare.network.message.receive.ShootClientMessage;
 import com.atsuishio.superbwarfare.perk.Perk;
@@ -104,14 +104,13 @@ public class JavelinItem extends GunItem {
 
         if (entity instanceof Player player && selected) {
             if (tag.getBoolean("Seeking")) {
-
                 List<Entity> decoy = SeekTool.seekLivingEntities(player, player.level(), 512, 8);
                 for (var e : decoy) {
-                    if (e instanceof DecoyEntity decoyEntity) {
-                        tag.putString("TargetEntity", decoyEntity.getDecoyUUID());
-                        tag.putDouble("TargetPosX", decoyEntity.getPosition().x);
-                        tag.putDouble("TargetPosY", decoyEntity.getPosition().y);
-                        tag.putDouble("TargetPosZ", decoyEntity.getPosition().z);
+                    if (e.getType().is(ModTags.EntityTypes.DECOY)) {
+                        tag.putString("TargetEntity", e.getStringUUID());
+                        tag.putDouble("TargetPosX", e.position().x);
+                        tag.putDouble("TargetPosY", e.position().y);
+                        tag.putDouble("TargetPosZ", e.position().z);
                     }
                 }
 
@@ -139,9 +138,7 @@ public class JavelinItem extends GunItem {
                             targetEntity.level().playSound(null, targetEntity.getOnPos(), targetEntity instanceof Pig ? SoundEvents.PIG_HURT : ModSounds.LOCKED_WARNING.get(), SoundSource.PLAYERS, 1, 0.95f);
                         }
                     }
-
                 } else if (tag.getInt("GuideType") == 1) {
-
                     Vec3 toVec = player.getEyePosition().vectorTo(new Vec3(tag.getDouble("TargetPosX"), tag.getDouble("TargetPosY"), tag.getDouble("TargetPosZ"))).normalize();
                     if (VectorTool.calculateAngle(player.getViewVector(1), toVec) < 8) {
                         tag.putInt("SeekTime", tag.getInt("SeekTime") + 1);
@@ -162,7 +159,7 @@ public class JavelinItem extends GunItem {
 
                 Entity seekingEntity = SeekTool.seekEntity(player, player.level(), 512, 8);
 
-                if (seekingEntity instanceof DecoyEntity) {
+                if (seekingEntity.getType().is(ModTags.EntityTypes.DECOY)) {
                     tag.putInt("SeekTime", 0);
                 }
             }
diff --git a/src/main/java/com/atsuishio/superbwarfare/tools/SeekTool.java b/src/main/java/com/atsuishio/superbwarfare/tools/SeekTool.java
index d9b2162bf..d75a1b0b8 100644
--- a/src/main/java/com/atsuishio/superbwarfare/tools/SeekTool.java
+++ b/src/main/java/com/atsuishio/superbwarfare/tools/SeekTool.java
@@ -1,7 +1,6 @@
 package com.atsuishio.superbwarfare.tools;
 
 import com.atsuishio.superbwarfare.config.server.SeekConfig;
-import com.atsuishio.superbwarfare.entity.projectile.DecoyEntity;
 import com.atsuishio.superbwarfare.entity.projectile.SmokeDecoyEntity;
 import com.atsuishio.superbwarfare.entity.projectile.SwarmDroneEntity;
 import com.atsuishio.superbwarfare.entity.vehicle.base.MobileVehicleEntity;
@@ -178,7 +177,7 @@ public class SeekTool {
     public static List<Entity> getEntitiesWithinRange(BlockPos pos, Level level, double range) {
         return StreamSupport.stream(EntityFindUtil.getEntities(level).getAll().spliterator(), false)
                 .filter(e -> e.distanceToSqr(pos.getX(), pos.getY(), pos.getZ()) <= range * range
-                        && baseFilter(e) && smokeFilter(e) && !(e instanceof DecoyEntity))
+                        && baseFilter(e) && smokeFilter(e) && !e.getType().is(ModTags.EntityTypes.DECOY))
                 .toList();
     }
 
diff --git a/src/main/java/com/atsuishio/superbwarfare/tools/TraceTool.java b/src/main/java/com/atsuishio/superbwarfare/tools/TraceTool.java
index 60c8c0e3e..35df1d0b7 100644
--- a/src/main/java/com/atsuishio/superbwarfare/tools/TraceTool.java
+++ b/src/main/java/com/atsuishio/superbwarfare/tools/TraceTool.java
@@ -1,7 +1,7 @@
 package com.atsuishio.superbwarfare.tools;
 
-import com.atsuishio.superbwarfare.entity.projectile.DecoyEntity;
 import com.atsuishio.superbwarfare.entity.vehicle.base.VehicleEntity;
+import com.atsuishio.superbwarfare.init.ModTags;
 import net.minecraft.core.BlockPos;
 import net.minecraft.core.Direction;
 import net.minecraft.world.entity.Entity;
@@ -108,7 +108,8 @@ public class TraceTool {
         Vec3 viewVec = vehicle.getBarrelVector(1);
         Vec3 toVec = eye.add(viewVec.x * entityReach, viewVec.y * entityReach, viewVec.z * entityReach);
         AABB aabb = vehicle.getBoundingBox().expandTowards(viewVec.scale(entityReach)).inflate(1.0D, 1.0D, 1.0D);
-        EntityHitResult entityhitresult = ProjectileUtil.getEntityHitResult(vehicle, eye, toVec, aabb, p -> !p.isSpectator() && p.isAlive() && SeekTool.baseFilter(p) && !(p instanceof DecoyEntity) && smokeFilter(p), distance);
+        EntityHitResult entityhitresult = ProjectileUtil.getEntityHitResult(vehicle, eye, toVec, aabb,
+                p -> !p.isSpectator() && p.isAlive() && SeekTool.baseFilter(p) && !p.getType().is(ModTags.EntityTypes.DECOY) && smokeFilter(p), distance);
         if (entityhitresult != null) {
             hitResult = entityhitresult;
 
@@ -130,7 +131,8 @@ public class TraceTool {
                 && p.isAlive()
                 && !(p instanceof Projectile)
                 && SeekTool.baseFilter(p)
-                && !(p instanceof DecoyEntity) && smokeFilter(p)
+                && !p.getType().is(ModTags.EntityTypes.DECOY)
+                && smokeFilter(p)
                 && p != entity
                 && p != entity.getVehicle(), distance);
         if (entityhitresult != null) {
@@ -154,7 +156,8 @@ public class TraceTool {
                 && p.isAlive()
                 && !(p instanceof Projectile)
                 && SeekTool.baseFilter(p)
-                && !(p instanceof DecoyEntity) && smokeFilter(p)
+                && !p.getType().is(ModTags.EntityTypes.DECOY)
+                && smokeFilter(p)
                 && p != player
                 && p != player.getVehicle(), distance);
         if (entityhitresult != null) {