diff --git a/src/main/java/net/mcreator/superbwarfare/item/gun/machinegun/M60Item.java b/src/main/java/net/mcreator/superbwarfare/item/gun/machinegun/M60Item.java
index dd04ad061..1823d3ea6 100644
--- a/src/main/java/net/mcreator/superbwarfare/item/gun/machinegun/M60Item.java
+++ b/src/main/java/net/mcreator/superbwarfare/item/gun/machinegun/M60Item.java
@@ -86,11 +86,11 @@ public class M60Item extends GunItem implements GeoItem, AnimatedItem {
                 return event.setAndContinue(RawAnimation.begin().thenLoop("animation.m60.draw"));
             }
 
-            if (stack.getOrCreateTag().getInt("fire_animation") > 0 && stack.getOrCreateTag().getDouble("animindex") == 0) {
+            if (stack.getOrCreateTag().getInt("fire_animation") > 0) {
                 return event.setAndContinue(RawAnimation.begin().thenPlay("animation.m60.fire"));
             }
 
-            if (stack.getOrCreateTag().getInt("fire_animation") > 0 && stack.getOrCreateTag().getDouble("animindex") == 1) {
+            if (stack.getOrCreateTag().getInt("fire_animation") > 0) {
                 return event.setAndContinue(RawAnimation.begin().thenPlay("animation.m60.fire2"));
             }
 
diff --git a/src/main/java/net/mcreator/superbwarfare/item/gun/rifle/MarlinItem.java b/src/main/java/net/mcreator/superbwarfare/item/gun/rifle/MarlinItem.java
index 814b27f28..8f84d658a 100644
--- a/src/main/java/net/mcreator/superbwarfare/item/gun/rifle/MarlinItem.java
+++ b/src/main/java/net/mcreator/superbwarfare/item/gun/rifle/MarlinItem.java
@@ -90,11 +90,11 @@ public class MarlinItem extends GunItem implements GeoItem, AnimatedItem {
                     return event.setAndContinue(RawAnimation.begin().thenLoop("animation.marlin.draw"));
                 }
 
-                if (stack.getOrCreateTag().getInt("flash_time") > 0 && stack.getOrCreateTag().getDouble("animindex") == 0) {
+                if (stack.getOrCreateTag().getInt("flash_time") > 0) {
                     return event.setAndContinue(RawAnimation.begin().thenPlay("animation.marlin.fire"));
                 }
 
-                if (stack.getOrCreateTag().getInt("flash_time") > 0 && stack.getOrCreateTag().getDouble("animindex") == 1) {
+                if (stack.getOrCreateTag().getInt("flash_time") > 0) {
                     return event.setAndContinue(RawAnimation.begin().thenPlay("animation.marlin.fire2"));
                 }
 
diff --git a/src/main/java/net/mcreator/superbwarfare/mixins/MouseHandlerMixin.java b/src/main/java/net/mcreator/superbwarfare/mixins/MouseHandlerMixin.java
index 72d29d8a9..35c1815ae 100644
--- a/src/main/java/net/mcreator/superbwarfare/mixins/MouseHandlerMixin.java
+++ b/src/main/java/net/mcreator/superbwarfare/mixins/MouseHandlerMixin.java
@@ -7,7 +7,6 @@ import net.mcreator.superbwarfare.init.ModTags;
 import net.minecraft.client.CameraType;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.MouseHandler;
-import net.minecraft.util.Mth;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.ItemStack;
 import org.lwjgl.glfw.GLFW;
@@ -24,7 +23,6 @@ public class MouseHandlerMixin {
 
     @ModifyVariable(method = "turnPlayer()V", at = @At(value = "STORE", opcode = Opcodes.DSTORE), ordinal = 2)
     private double sensitivity(double original) {
-        float additionalAdsSensitivity = 1.0F;
         Minecraft mc = Minecraft.getInstance();
         Player player = Minecraft.getInstance().player;
 
@@ -50,22 +48,14 @@ public class MouseHandlerMixin {
             return original;
         }
 
-        boolean flag = false;
-        float sens = 0.2f;
-        double fov = ClientEventHandler.fov;
+        double zoom = stack.getOrCreateTag().getDouble("zoom") + stack.getOrCreateTag().getDouble("custom_zoom");
         float customSens = (float) stack.getOrCreateTag().getInt("sensitivity");
 
-        float originalFov = mc.options.fov().get();
 
         if (!player.getMainHandItem().isEmpty() && mc.options.getCameraType() == CameraType.FIRST_PERSON) {
-            if (GLFW.glfwGetMouseButton(Minecraft.getInstance().getWindow().getWindow(), GLFW.GLFW_MOUSE_BUTTON_RIGHT) == GLFW.GLFW_PRESS) {
-                additionalAdsSensitivity = (float) Mth.clamp((1 + 0.1f * customSens) * (1.25F * fov / originalFov) * (1 + 0.2f * Math.pow((originalFov / fov), 1.25)), 0.125F, 2F);
-            } else {
-                additionalAdsSensitivity = Mth.clamp((1 + 0.1f * customSens) * 1.25F, 0.125F, 2F);
-            }
-            flag = true;
+            return original / Math.max((1 + (0.25 * (zoom - (0.2 * customSens)) * ClientEventHandler.zoomTime)), 0.1);
         }
 
-        return original * additionalAdsSensitivity * (1.0 - sens * (flag ? 1 : 0));
+        return original;
     }
 }
diff --git a/src/main/java/net/mcreator/superbwarfare/network/message/ShootMessage.java b/src/main/java/net/mcreator/superbwarfare/network/message/ShootMessage.java
index fcb6bf949..9ec38ad31 100644
--- a/src/main/java/net/mcreator/superbwarfare/network/message/ShootMessage.java
+++ b/src/main/java/net/mcreator/superbwarfare/network/message/ShootMessage.java
@@ -75,29 +75,21 @@ public class ShootMessage {
                     && !stack.getOrCreateTag().getBoolean("need_bolt_action")) {
 
                 int singleInterval = 0;
-                if (mode == 0) {
-                    player.getCapability(ModVariables.PLAYER_VARIABLES_CAPABILITY, null).ifPresent(capability -> {
-                        capability.holdFire = false;
-                        capability.syncPlayerVariables(player);
-                    });
-                    singleInterval = coolDownTick;
-                }
-
                 int burstCooldown = 0;
-                if (mode == 1) {
+
+                if (mode != 2) {
                     player.getCapability(ModVariables.PLAYER_VARIABLES_CAPABILITY, null).ifPresent(capability -> {
                         capability.holdFire = false;
                         capability.syncPlayerVariables(player);
                     });
-                    stack.getOrCreateTag().putInt("burst_fire", (stack.getOrCreateTag().getInt("burst_fire") - 1));
-                    burstCooldown = stack.getOrCreateTag().getInt("burst_fire") == 0 ? coolDownTick + 4 : 0;
+                    if (mode == 0) {
+                        singleInterval = coolDownTick;
+                    } else if (mode == 1) {
+                        burstCooldown = stack.getOrCreateTag().getInt("burst_fire") == 0 ? coolDownTick + 3 : 0;
+                        stack.getOrCreateTag().putInt("burst_fire", (stack.getOrCreateTag().getInt("burst_fire") - 1));
+                    }
                 }
 
-                if (stack.getOrCreateTag().getDouble("animindex") == 1) {
-                    stack.getOrCreateTag().putDouble("animindex", 0);
-                } else {
-                    stack.getOrCreateTag().putDouble("animindex", 1);
-                }
                 /*
                   空仓挂机
                  */
diff --git a/src/main/resources/data/superbwarfare/guns/m_870.json b/src/main/resources/data/superbwarfare/guns/m_870.json
index 71643e061..142fd7350 100644
--- a/src/main/resources/data/superbwarfare/guns/m_870.json
+++ b/src/main/resources/data/superbwarfare/guns/m_870.json
@@ -22,5 +22,5 @@
   "finish_time": 12,
   "BypassesArmor": 0.05,
   "SoundRadius": 16,
-  "rpm": 90
+  "rpm": 80
 }
\ No newline at end of file