There's still quite a lot to do, but I've updated a few things:

First level updated to night time, and music changed.
Signal rockets to call for backup implemented into the 1st level. Walk in between them to set them off.
Ammo pickups should now stack properly.
Camera blur effect removed, and other lighting changes on most levels.
Underwater effect enabled, but can't drown in water.
Exit buttons in the menus should now work.

There may be many glitches that I am unaware of that this point. I apologize for any inconvenience.