Submarine position syncing fix:

The position correction logic only moved the submarine that's being synced and the subs docked directly to it, but not the subs docked to the docked subs. This caused severe physics issues with some specific subs, for example mirrored HSE Kullervo Carriers tended to get launched downwards at a game-breaking speed.

Barotrauma/BarotraumaShared/Source/Map/SubmarineBody.cs

@@ -193,12 +193,11 @@ namespace Barotrauma
                 Body.CorrectPosition(memPos, deltaTime, out newVelocity, out newPosition);
                 Vector2 moveAmount = ConvertUnits.ToDisplayUnits(newPosition - Body.SimPosition);
 
-                List<Submarine> subsToMove = new List<Submarine>() { this.submarine };
-                subsToMove.AddRange(submarine.DockedTo);
-
-                foreach (Submarine dockedSub in submarine.DockedTo)
+                List<Submarine> subsToMove = submarine.GetConnectedSubs();
+                foreach (Submarine dockedSub in subsToMove)
                 {
-                    //clear the position buffer of the docked sub to prevent unnecessary position corrections
+                    if (dockedSub == submarine) continue;
+                    //clear the position buffer of the docked subs to prevent unnecessary position corrections
                     dockedSub.SubBody.memPos.Clear();
                 }
 
@@ -213,7 +212,6 @@ namespace Barotrauma
                 }
 
                 bool displace = moveAmount.Length() > 100.0f;
-
                 foreach (Submarine sub in subsToMove)
                 {
                     sub.PhysicsBody.SetTransform(sub.PhysicsBody.SimPosition + ConvertUnits.ToSimUnits(moveAmount), 0.0f);