As any experienced zombie player will know the only safe way to get to the 25+ rounds is by circling.
Kino de toten:
Circle 1= stage- going around the screen itself (particualy good for the M16 users)
Circle 2= stage- going around the turret gun up and down the stairs (particualy good for the M16 users)
Circle 3= Lobby- going up around and down stairs
Circle 4= MP40 room- going up around and down the stairs (particualy good for the MP40 and stakeout users)
Circle 5= Allyway- Doing a figure of 8 motion between the box area and the front of the gate area (particualy good for the AK74u users)
Circle 1= Start point- going around the desks now and then popping in the side rooms to use the traps.
Circle 2= Stakeout room- open up the barriors and you have yourself one of the easiest circles (good for multiple people)
Circle 3= Lab- using the first room to the left when you come down the elivator go through there then follw the rooms wall on the outside and back through again.
Circle 4= Pig/claymore room- Going around the operating tables
Circle 5= lab- using the hallways go around the 3rd room in a squre pattern
Circle 1= start point- just a basic circle
Circle 2= Below start point - a basic circle around the red box's Circle 3= outside near teleporter- a cirle around the rock sometimes going up near the door to bring them all together a bit better
Circle 4-5-6= dome room plenty of space here and many circle's can be done
I've only mentioned these 3 maps because there the only one's i really enjoy playing (except for Five but when your stuck at your gf's in the middle of the countryside with no internet and just the basic maps what ya gonna do) I do play the others but you dont find many decent players when finding a match online even less that have mic's so if you have any questions on any of the maps new or old about anything not just circling i'll be happy to answer i've done all the easter eggs and know some of the few remaining glitches.
I have some of the best strategy methods for points as well for example:
Level 1- shoot 8 times in the leg then stab do not let through the window ( if you get a perk its a waste because there's only a few zombies even max ammo is a waste at this round seeing as every spare bullit you have will be wasted.
Level 2- shoot 8 bullits in chest/stomach area if you can wait till the zombies are in a row and you'll get double maybe even triple points and then stab.
Level 3- Now you should have got max ammo by now but if not just stab each one 3 times until you do. shoot 16 bullits in the stomach/ball area to high and it will kill them then stab.
Level 4- Same agin shoot 16 bullits in chest area and then stab make sure to leave a crawler so you can open up doors get weapons do what you will
The reason we leave a crawler at level 4 is because level 5+ they will start sprinting and double swinging not good when your trying to stab.
I have tactics for every map and through every round feel free to ask.