Cleanup (removing unused variables & other redundancies, rethrowing exceptions instead of wrapping them in a new exception instance)

Subsurface/Source/GameSession/CargoManager.cs

@@ -41,7 +41,7 @@ namespace Barotrauma
                     Rand.Range(cargoRoom.Rect.X + 20, cargoRoom.Rect.Right - 20),
                     cargoRoom.Rect.Y - cargoRoom.Rect.Height + prefab.Size.Y/2);
 
-                new Item(prefab as ItemPrefab, position, wp.Submarine);
+                new Item(prefab, position, wp.Submarine);
             }
 
             purchasedItems.Clear();

Subsurface/Source/GameSession/GameSession.cs

@@ -161,9 +161,9 @@ namespace Barotrauma
 
         public void StartShift(string levelSeed, bool loadSecondSub = false)
         {
-            Level level = Level.CreateRandom(levelSeed);
+            Level randomLevel = Level.CreateRandom(levelSeed);
 
-            StartShift(level,true,loadSecondSub);
+            StartShift(randomLevel, true, loadSecondSub);
         }
 
         public void StartShift(Level level, bool reloadSub = true, bool loadSecondSub = false)

Subsurface/Source/GameSession/HireManager.cs

@@ -6,7 +6,7 @@ namespace Barotrauma
     {
         public List<CharacterInfo> availableCharacters;
 
-        const int MaxAvailableCharacters = 10;
+        public const int MaxAvailableCharacters = 10;
 
         public HireManager()
         {