Hi,
I would like to invite you to obey my new map.
. It is based on resisting Zombie Waves - There are up to 7. With each New Wave, the level of the game increases.
-6 WAVES AND BOSS FIGHT
-NEW ZOMBIE SYSTEM
-NEW UNIQUE GAMEPLAY
-UP TO 4 PLAYERS (MEET L4D2 CHARACTERS AGAIN!)
Link: http://steamcommunity.com/sharedfiles/filedetails/?id=1264943019