I am guessing this is a bug right? I would hope not taking damage from NPC's is not a new game mode.
I didn't even realize we weren't taking damage till teammate told me, could only take damage from melee and nades.
We went in DZ to see if we could kill each other and that still worked.
Maybe you better just put TD2 out now cause you cant seem to keep this game going without bugs, I mean no damage from NPC's, that's pretty game breaking.

