Zombie Apocalypse: Never Die Alone

Download the dlc and play day 56. You must survive until you have cleared the board of all zombie waves. Can be done with single player but helps to have a friend or 3. Every type of zombie is encountered during this. Maybe about 8 waves(i am counting a wave as the time between the bosses). Keep an eye out on your health and remember you can switch between characters if playing single player. Try to be the guy with the most health or best choice of weapons that fit your game play. Revive your team mate as soon as possible if they go down. You can throw your zombie bait before a revive to give yourself time. Don't forget you also have a special move you can use too. You are invulnerable during this time. There is a top lab section with a bridge in middle of board and the bottom is a big open military base outside area. I did this single player and got it on my third try. The explosive enemies and construction workers are the worse. Try to save some of your special moves for those times. If I play through again I will edit this as far as how many waves there are or bosses. All right I played through again. Total time to beat level was 12:04 minutes. Here is how they came at me. zombies/2bosses/zombies/2 bosses/zombies/2 bosses/zombies/2 bosses/pressed switch with A button at top of map then came lots of zombies with 2 bosses/ zombies & construction workers with1 boss/zombies & gas can zombies with 1 boss and that was the end of level. I stayed in bottom left most of the time with firing range to my right. When bosses came i would use my power(mainly the turret from the one girl and the fast machine gun from the machine gun guy).
When teammates went down I would throw the teddy bear c4 or the boom box and hurry up and revive my players that were down. When I noticed my whole team with low health I would use the shotgun guys special power and heal everyone. After pressing the switch in lab I ran back to bottom of map where it was safer. There is also power weapons on map. I mainly used the quad fire machine gun right above my position on bottom left of map. Good Luck and I hope this helps.