Agreed. Somehow it's even worse than RE5's Survivors.
Team Survivors is even worse. No way to differentiate team mates from enemies.
"Oh hey buddy let me come with y- *BLAM*"
Oh...you were an enemy?
I don't mind it as much, but only when i'm specificly playing 2 v 2, with my buddy on in a party so we can talk tactics, stay close to revive each other etc.
I'd love it, if it weren't for one thing: You respawn as a zombie when you die, i HATE that, they're too slow and impossible to get a kill with, so once you die, you're not playing as a human again for the whole round.
If it was like RE5, where you just respawn, that'd be awesome. I also like the slight changes to the levels, blocked stairways and extra routes etc, that's awesome.