4/28 Patch

Some more bug fixes and improvements for the DLC!

• Fixed some errors that could cause crashes while loading the main menu
  
• Fixed loading a single shell into the Annihilator Prototype always going into the right barrel
  
• Fixed some incorrect menu text
  
• Added bumblebee ammo pickup to level editor
  
• Fixed the moonbase vortex portal sometimes taking you to the wrong chapter
  
• Decreased volume of Bumblebee audio