diff --git a/units/ArmShips/T2/armacsub.lua b/units/ArmShips/T2/armacsub.lua
index 0b4e4f0e073..6e167b278b3 100644
--- a/units/ArmShips/T2/armacsub.lua
+++ b/units/ArmShips/T2/armacsub.lua
@@ -6,7 +6,7 @@ return {
 		buildtime = 18000,
 		canmove = true,
 		collisionvolumeoffsets = "0 0 -1",
-		collisionvolumescales = "31 30 63",
+		collisionvolumescales = "38 38 63",
 		collisionvolumetype = "CylZ",
 		corpse = "DEAD",
 		energycost = 9000,
diff --git a/units/ArmShips/T2/armserp.lua b/units/ArmShips/T2/armserp.lua
index 81b57c465db..95c7263985d 100644
--- a/units/ArmShips/T2/armserp.lua
+++ b/units/ArmShips/T2/armserp.lua
@@ -4,8 +4,8 @@ return {
 		buildpic = "ARMSERP.DDS",
 		buildtime = 22770,
 		canmove = true,
-		collisionvolumeoffsets = "0 -2 0",
-		collisionvolumescales = "45 19 57",
+		collisionvolumeoffsets = "0 0 0",
+		collisionvolumescales = "52 30 57",
 		collisionvolumetype = "box",
 		corpse = "DEAD",
 		energycost = 27000,
diff --git a/units/ArmShips/T2/armsubk.lua b/units/ArmShips/T2/armsubk.lua
index 0bb42f02c84..2da382b2ad7 100644
--- a/units/ArmShips/T2/armsubk.lua
+++ b/units/ArmShips/T2/armsubk.lua
@@ -4,8 +4,8 @@ return {
 		buildpic = "ARMSUBK.DDS",
 		buildtime = 22000,
 		canmove = true,
-		collisionvolumeoffsets = "0.5 0 0",
-		collisionvolumescales = "20 15 64",
+		collisionvolumeoffsets = "0 5 0",
+		collisionvolumescales = "30 30 64",
 		collisionvolumetype = "box",
 		corpse = "DEAD",
 		energycost = 17000,
diff --git a/units/ArmShips/armrecl.lua b/units/ArmShips/armrecl.lua
index 56a1726f8b6..0b98e78f797 100644
--- a/units/ArmShips/armrecl.lua
+++ b/units/ArmShips/armrecl.lua
@@ -9,8 +9,8 @@ return {
 		canassist = false,
 		canmove = true,
 		canresurrect = true,
-		collisionvolumeoffsets = "0 0 2",
-		collisionvolumescales = "38 17 50",
+		collisionvolumeoffsets = "0 0 -5",
+		collisionvolumescales = "38 20 65",
 		collisionvolumetype = "box",
 		energycost = 3000,
 		explodeas = "smallexplosiongeneric-uw",
diff --git a/units/ArmShips/armsub.lua b/units/ArmShips/armsub.lua
index 1fe189db916..3189bdb8b10 100644
--- a/units/ArmShips/armsub.lua
+++ b/units/ArmShips/armsub.lua
@@ -5,8 +5,8 @@ return {
 		buildpic = "ARMSUB.DDS",
 		buildtime = 5800,
 		canmove = true,
-		collisionvolumeoffsets = "0 -4 0",
-		collisionvolumescales = "30 15 43",
+		collisionvolumeoffsets = "0 0 0",
+		collisionvolumescales = "30 20 43",
 		collisionvolumetype = "box",
 		corpse = "DEAD",
 		energycost = 3100,
diff --git a/units/CorShips/T2/coracsub.lua b/units/CorShips/T2/coracsub.lua
index 3562904fa44..3cb7b722676 100644
--- a/units/CorShips/T2/coracsub.lua
+++ b/units/CorShips/T2/coracsub.lua
@@ -6,7 +6,7 @@ return {
 		buildtime = 18000,
 		canmove = true,
 		collisionvolumeoffsets = "0 0 4",
-		collisionvolumescales = "38 9 72",
+		collisionvolumescales = "40 25 74",
 		collisionvolumetype = "box",
 		corpse = "DEAD",
 		energycost = 9000,
diff --git a/units/CorShips/T2/corshark.lua b/units/CorShips/T2/corshark.lua
index 9db74fdfb5d..d22123bf980 100644
--- a/units/CorShips/T2/corshark.lua
+++ b/units/CorShips/T2/corshark.lua
@@ -4,8 +4,8 @@ return {
 		buildpic = "CORSHARK.DDS",
 		buildtime = 18000,
 		canmove = true,
-		collisionvolumeoffsets = "0.5 0 0",
-		collisionvolumescales = "20 15 64",
+		collisionvolumeoffsets = "0 5 0",
+		collisionvolumescales = "30 30 64",
 		collisionvolumetype = "box",
 		corpse = "DEAD",
 		energycost = 14000,
diff --git a/units/CorShips/T2/corssub.lua b/units/CorShips/T2/corssub.lua
index ead09ce01dd..829f1837a52 100644
--- a/units/CorShips/T2/corssub.lua
+++ b/units/CorShips/T2/corssub.lua
@@ -5,7 +5,7 @@ return {
 		buildtime = 24750,
 		canmove = true,
 		collisionvolumeoffsets = "0 0 0",
-		collisionvolumescales = "52 14 67",
+		collisionvolumescales = "52 25 60",
 		collisionvolumetype = "box",
 		corpse = "DEAD",
 		energycost = 29000,
diff --git a/units/CorShips/corsub.lua b/units/CorShips/corsub.lua
index efdd9c994b0..a7d3ae1fe0b 100644
--- a/units/CorShips/corsub.lua
+++ b/units/CorShips/corsub.lua
@@ -5,8 +5,8 @@ return {
 		buildpic = "CORSUB.DDS",
 		buildtime = 7200,
 		canmove = true,
-		collisionvolumeoffsets = "0 -4 0",
-		collisionvolumescales = "35 17 50",
+		collisionvolumeoffsets = "0 0 0",
+		collisionvolumescales = "35 22 50",
 		collisionvolumetype = "box",
 		corpse = "DEAD",
 		energycost = 4000,