Just saying...
Nova6 Zombies take 3 hits to down you. So just make 2 of them crawlers and use them than move the hell outta the way before you get hit a 3rd time. Just saying
Also, I posted this in another thread however this one is about jumping higher sooo...
I have a suggestion on how to jump higher. Not quite sure if it'll work but me and my cousin were playing and doing the jump ontop of one another thing. After we were downed I was still on his head. Somehow we were both revived and I was still on his head while he was standing up. Perhaps you can do that in the corner there and simply jump ontop of it from your teammates head. Ofcourse with 4 people there would be 1 who wouldn't be up there. However if it works, than most glitch spots could be done again ^.^. I didn't think anything of it until just now.
If you wanna try this out with me...my PSN is The_Main_FAAG