Here it is. Level 1 beta. All known gameplay bugs fixed, and since the demo does not support co-op yet, four ai players to aid you. Known issues: -Menu screen changes to Lost Coast background after the game loads up, although if you were to start up a map and then go back to the menu, the menu screen will be the regular Zombie Co-Op background again. -Ai were last minute additions, so they may not go through all of the terrain. It is not known. You can handle it all on your own though :P.
TO INSTALL:
UNPACK THE FILE WITH A PROGRAM LIKE WINRAR OR WINZIP.1. OPEN UP THE COMPRESSED FILE
2. HIGHLIGHT THE FOLDER NAMED "Zombie Co-Op"
3. CLICK EXTRACT TO
4. PLACE IT IN THE SOURCEMODS FOLDER, LOCATED IN YOUR STEAM ACCOUNT FOLDER, WHICH IS IN YOUR STEAM FOLDER.