diff --git a/client/src/Class320.java b/client/src/Class320.java
index 4ff6b089..3e6a9ecf 100644
--- a/client/src/Class320.java
+++ b/client/src/Class320.java
@@ -5,6 +5,7 @@
 final class Class320 {
     static short aShort3992 = 320;
     static int anInt3993;
+    static int anInt3995 = Constant.ZOOM_OFFSET_DEFAULT;
     static float aFloat3994;
 
     static final boolean method2547(int i, byte i_0_) {
diff --git a/client/src/Class348_Sub42_Sub3.java b/client/src/Class348_Sub42_Sub3.java
index b2ce5651..58ed3c06 100644
--- a/client/src/Class348_Sub42_Sub3.java
+++ b/client/src/Class348_Sub42_Sub3.java
@@ -24,6 +24,19 @@ static final void method3174(int i, int i_0_, int i_1_, boolean bool, byte i_2_,
         if (i_4_ < 0) i_4_ = 0;
         else if (i_4_ > 100) i_4_ = 100;
         int i_5_ = ((-Class110.aShort1700 + Class168.aShort2250) * i_4_ / 100 + Class110.aShort1700);
+        int i_5_base = i_5_;
+        if (Class320.anInt3995 != 0) i_5_ += Class320.anInt3995;
+        int i_5_min = Class110.aShort1700 * Constant.FOV_MIN_FACTOR_NUM / Constant.FOV_MIN_FACTOR_DEN;
+        int i_5_max = Class168.aShort2250 * Constant.FOV_MAX_FACTOR_NUM / Constant.FOV_MAX_FACTOR_DEN;
+        if (i_5_min < Constant.FOV_MIN_ABS) i_5_min = Constant.FOV_MIN_ABS;
+        if (i_5_min > i_5_max) {
+            int i_5_tmp = i_5_min;
+            i_5_min = i_5_max;
+            i_5_max = i_5_tmp;
+        }
+        if (i_5_ < i_5_min) i_5_ = i_5_min;
+        else if (i_5_ > i_5_max) i_5_ = i_5_max;
+        if (Class320.anInt3995 != 0) Class320.anInt3995 = i_5_ - i_5_base;
         if (i_5_ < Class348_Sub42_Sub8.aShort9555) i_5_ = Class348_Sub42_Sub8.aShort9555;
         else if (Class48.aShort851 < i_5_) i_5_ = Class48.aShort851;
         int i_6_ = 512 * i_5_ * i_3_ / (i_1_ * 334);
diff --git a/client/src/Constant.java b/client/src/Constant.java
new file mode 100644
index 00000000..54d526a8
--- /dev/null
+++ b/client/src/Constant.java
@@ -0,0 +1,13 @@
+final class Constant {
+    static final int ZOOM_OFFSET_DEFAULT = 0; // Linear zoom offset added to the computed FOV (0 = no offset).
+    static final int ZOOM_OFFSET_STEP = 15; // Scroll step size for the linear zoom offset.
+
+    static final int FOV_MIN_FACTOR_NUM = 1; // FOV minimum as a fraction of the base min (numerator).
+    static final int FOV_MIN_FACTOR_DEN = 4; // FOV minimum as a fraction of the base min (denominator).
+    static final int FOV_MAX_FACTOR_NUM = 4; // FOV maximum as a fraction of the base max (numerator).
+    static final int FOV_MAX_FACTOR_DEN = 1; // FOV maximum as a fraction of the base max (denominator).
+    static final int FOV_MIN_ABS = 50; // Absolute minimum FOV clamp regardless of base settings.
+
+    private Constant() {
+    }
+}
diff --git a/client/src/client.java b/client/src/client.java
index 60dcfa1d..6b0d860e 100644
--- a/client/src/client.java
+++ b/client/src/client.java
@@ -1764,7 +1764,11 @@ private final void method114(int i) {
                             Class318_Sub1_Sub3.aClass262_8744.method1999(class348_sub45, -20180);
                             if (Class318_Sub1_Sub3.aClass262_8744.method1998(0) > 10) Class318_Sub1_Sub3.aClass262_8744.method1997(8);
                         }
-                    } else Class98.anInt1565 += class348_sub45.method3315(0);
+                    } else {
+                        int i_112_ = class348_sub45.method3315(0);
+                        Class98.anInt1565 += i_112_;
+                        Class320.anInt3995 += -i_112_ * Constant.ZOOM_OFFSET_STEP;
+                    }
                 } else r_Sub1.aClass262_10479.method1999(class348_sub45, -20180);
             }
             if (Class348_Sub42_Sub16_Sub2.method3263(true)) Class38.method363(125);