diff --git a/src/main/java/com/atsuishio/superbwarfare/entity/projectile/SmallCannonShellEntity.java b/src/main/java/com/atsuishio/superbwarfare/entity/projectile/SmallCannonShellEntity.java
index 07f966c04..63339e5de 100644
--- a/src/main/java/com/atsuishio/superbwarfare/entity/projectile/SmallCannonShellEntity.java
+++ b/src/main/java/com/atsuishio/superbwarfare/entity/projectile/SmallCannonShellEntity.java
@@ -175,7 +175,7 @@ public class SmallCannonShellEntity extends FastThrowableProjectile implements G
                 .getEntities(this,
                         this.getBoundingBox()
                                 .expandTowards(this.getDeltaMovement())
-                                .inflate(0.5)
+                                .inflate(0.75)
                 );
 
         for (Entity entity : entities) {
diff --git a/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/Hpj11Entity.java b/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/Hpj11Entity.java
index 38a5b429e..8cad2570f 100644
--- a/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/Hpj11Entity.java
+++ b/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/Hpj11Entity.java
@@ -229,6 +229,12 @@ public class Hpj11Entity extends ContainerMobileVehicleEntity implements GeoEnti
             this.setDeltaMovement(this.getDeltaMovement().add(0.0, -0.04, 0.0));
         }
 
+        if (this.getFirstPassenger() instanceof Player player && fireInputDown) {
+            if ((this.entityData.get(AMMO) > 0 || InventoryTool.hasCreativeAmmoBox(player)) && !cannotFire) {
+                vehicleShoot(player, 0);
+            }
+        }
+
         this.entityData.set(GUN_ROTATE, this.entityData.get(GUN_ROTATE) * 0.8f);
         setGunRot(getGunRot() + entityData.get(GUN_ROTATE));
 
@@ -307,9 +313,7 @@ public class Hpj11Entity extends ContainerMobileVehicleEntity implements GeoEnti
             if (target.distanceTo(this) <= 144 && VectorTool.calculateAngle(getViewVector(1), targetVec) < 10) {
                 if (checkNoClip(target, barrelRootPos) && entityData.get(AMMO) > 0) {
                     vehicleShoot(player, 0);
-
                     findEntityOnPath(barrelRootPos, targetVec);
-
                 } else {
                     changeTargetTimer++;
                 }
@@ -550,12 +554,12 @@ public class Hpj11Entity extends ContainerMobileVehicleEntity implements GeoEnti
 
     @Override
     public int mainGunRpm(Player player) {
-        return 1200;
+        return 0;
     }
 
     @Override
     public boolean canShoot(Player player) {
-        return (this.entityData.get(AMMO) > 0 || InventoryTool.hasCreativeAmmoBox(player)) && !cannotFire;
+        return false;
     }
 
     @Override
diff --git a/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/base/MobileVehicleEntity.java b/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/base/MobileVehicleEntity.java
index c800c67e9..5e5f7d3b8 100644
--- a/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/base/MobileVehicleEntity.java
+++ b/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/base/MobileVehicleEntity.java
@@ -71,6 +71,7 @@ public abstract class MobileVehicleEntity extends EnergyVehicleEntity implements
     public boolean upInputDown;
     public boolean downInputDown;
     public boolean decoyInputDown;
+    public boolean fireInputDown;
     public double lastTickSpeed;
     public double lastTickVerticalSpeed;
     public int collisionCoolDown;
@@ -135,6 +136,8 @@ public abstract class MobileVehicleEntity extends EnergyVehicleEntity implements
                 = (keys & 0b0100000) > 0;
         decoyInputDown
                 = (keys & 0b1000000) > 0;
+        fireInputDown
+                = (keys & 0b1000001) > 0;
     }
 
     @Override
diff --git a/src/main/java/com/atsuishio/superbwarfare/event/ClientEventHandler.java b/src/main/java/com/atsuishio/superbwarfare/event/ClientEventHandler.java
index e76545783..0af8e672f 100644
--- a/src/main/java/com/atsuishio/superbwarfare/event/ClientEventHandler.java
+++ b/src/main/java/com/atsuishio/superbwarfare/event/ClientEventHandler.java
@@ -270,6 +270,9 @@ public class ClientEventHandler {
             if (ModKeyMappings.RELEASE_DECOY.isDown()) {
                 keys |= 0b1000000;
             }
+            if (holdFireVehicle) {
+                keys |= 0b1000001;
+            }
         }
 
         if (keys != keysCache) {