From my limited playing experience (around 2hr) so far, I'd say:
- The most dangerous "enemies" are ... your fellow survivors! I probably die as often from friendly fire as from the horde. Please aim when you shoot
- Stay together, resist the urge to run around blasting zombies! People from FPS background (myself included) love doing this. Running around will only get you into the line of fire of your team mates. Zombies drop quickly so stay calm, stay grouped, and blast away! (unless it's the tank
)
- When you get spit on by a Boomer, get back against a corner and melee the zombies while crouching! Try not to shoot since you're as likely to kill your team mates. And crouching will make it much easier for others to help you out.
This game is FUN!!