Just been in with 5 players, it is still too hard to kill the zombies especially the dogs, it should maybe start off fairly easy and get harder progressively, we don't live long enough to get past 2 or 3 minutes in each map, seem to get infected quite easy too which means you usually have to choose between getting the cure or getting more ammo, either one gets you killed, more ammo means you will die of infection, getting the cure means you run out of ammo and still get killed, tried knifing the zombies it's taking about 3 knifing attempts to bring them down, maybe 1 knife attempt as it is hard when you are close to the zombies to stay alive. We not living long enough to test a lot of stuff out lol.