Text TUT*for now*

*Need 4 people

1.Enable the power and keep getting the box.
2.Survive the first few rounds just by running around knifing, earning as many points as you can.
3.Two people buy PHD Flopper and keep flopping off the stairs next too it, one at a time, the other 2 players guard the 2 windows, one on the metal catwalk and the other in the PHD Flopper room.
4.Every round keep a zombie and go and upgrade, get another gun or get perks.
5.Make sure you have no more than 4 different perks between everyone, so when the monkeys come you all split up and guard one machine each which is really easy with upgraded guns.
6.At round 27 PHD Flopper starts to do less damage on the zombies and puts most of them into the state in which they have no legs, this is where it gets tricky, the player guarding the window on the metal catwalk should try and get the Krauss Refibrillator (upgraded ballistic knife) and revive the floppers when ever they get downed.

With this strategy i normally attain a round of 30+, so it is guaranteed of a round of 25+.



Thank the topic if this helped you and please +Rep.