My NPCs don't work

On my new HL2 Campaign server, the NPC’s (metrocops) dont shoot at me they just stand there and push you back. I dont think this is the gamemode as other servers have it working perfectly. Is there a CVAR or something that I am missing?

On what map? Because on the first level they are not ment to shoot you.

Its ok now. It happens when you cut straight to a map without going through, and theyr’e in the wrong state