Also regarding the DLC:
it's basically a minigame where you detect cyborgs and have to shoot them in certain spots
it's basically find the not-zombies, shoot the not-zombies in their weak points.
It's stressed even more as a very small and limited minigame by the fact the not-zombies/cyborgs do nothing but run/walk at you and explode. Slowly. Mysteriously killing you from whatever range you managed to get to. If you don't shoot them first.
Rinse and repeat 300 times with more frustrating "versions" of cyborg including "can run faster," "can see you easier," and "does loving nothing."
It's like an even more boring and irritating (and also more eye-straining) version of the Alone digital trip, which I actually thought was pretty decent. Especially considering it came with the game and wasn't five dollars on top of the main game.