I forgot the name of the mod where i can play multiplayer wit my friend and kill some monster in row. first easy enemys later stronger and so on...
thats not much help... Zombies? Need more info dude. Might be brainbread. Or sven coop
That mod might be Synergy, on a map I made for it.
Here's the link; http://planetdawson.com/synergy/ . Hope that's the HL2 mod you're looking for.
maybe tim-coop:confused: :confused: I downloaded it and I played against npc's
maybe god damn undead