Was playing left 4 dead and tought it would be cool to have to build a fort to defend yourselves against hordes of zombies. (a bit like the Garry's mod onslaught map)
Im not talking about the slow stupid zombies from hl2 but smart, fast running zombies from the movie 28 days later.
The l4d zombies can:
-Bash trough doors(or plates)
-Run!.
-climb.
-jump.
-stack up on eachother to get up high.
-perfor smart moves like not running in a straight line towards you and all attacking from a different direction.
Left 4 dead also features a few special zombies that can seriously hamper your fort and team:
Tank:A massive hulk like zombie with alot of hp and which does alot of damage, can smash annyone to death in 2 go's and can throw rocks.
Smoker: Has a longe tongue that can pull people away from afar an drag em trough hordes of zombies + seperate them from the group.
Hunter: Fast and agile zombie that can jump on you and slash you until you are dead.
Boomer:A fat zombie that can barf on players, when it hits you your vision will be blurred and you will be attract alot of zombies. (boomers also explode when killed throwing barf in evry direction)
Witch:Sits in a set position crying, when a player gets to close, shoots her, or shines on her with a flashlight she freaks out and attacks the player (usually killing him)
The AI doesnt need any premade pathfinding you can just dump em in an empty map and they react accordingly.
This probably isnt totaly feasable with the sourceforts engine (since it doesnt support any AI now) and it probably would be easier to make a forts mod for L4D then a zombies mod for sourceforts.
Therefore im also posting this on a left 4 dead forum.
Garry's mod: