Was I right for the gamemode?
i guess :P
-Crab spawner
-Team of bots
-crabs infect bots and/or you
-bots kill you once having a headcrab attached to them
-dont get killed (duh)
-timer for amount of time
-Base area where you spawn
and maybe, when the crabs got all the bots, would it be possible to kind of slow down the rate of crab spawning?
Otherwise i think that is it :D
And there are mods that show this is fully possible, Zombies, Foolly's Fun comands (the mount player) So yeh that is it i think :D