New Location - Bunker

I added the bunker to the game, I've added this to sort of fit with the WW2 mix that I've got going on. It contains the newly added Thompson.

New Gun - Thompson

Added the Thompson which serves as a high fire rate and spread weapon. It uses 9mm ammo (not accurate, but used to fit into the current game loop)

Unrelated garbage

My scene corrupted and I had to go to a backup of the scene from alpha 2. Not so bad, all I add to re-add was the cave struts and sounds.

Decreased the spread on the double barrel