Fixed a lot of issues with the checkpoints in the new campaign level, as well as some general code optimization.

Full Changelog

Changed

• Optimized and refactored player code
  
• All friendly Wolf operators in Hot on the Trail can now be seen even when not looking at them
  

Fixed

Hot on the Trail Fixes

• Worthsfeld consistently plays the charge planting animation in the new Hot on the Trail level
  
• No longer throws an index out of bound exception when the last AA site is destroyed
  
• Player no longer spawns in the middle of nowhere when restarting from the third checkpoint
  
• Worthsfeld will now always continue to walk to the AA site to plant charges rather than walking off if he gets interrupted by enemy fire
  
• Trees that have overlapping leaves with other trees no longer have occasional clipping between their leaves
  
• Checkpoints have been fixed