i am sorry but i have no clue, there is one where you can jump into the wood in the main room until it says cant stand here but for some reason it never works for me...
ill try and see if i can find any
theres one where you can jump on the light when you go down the stairs, you have to run and press the left button and hold it and you will stay up there and the zombies can not get you, it is very hard
the flogger, but yah.. again extremely hard, i usually get every glitch the 1st or 2nd try but that is stinkin hard. you can run jump crouch into the left side of one of the perk machines while in air and if its speed cola you have an invisible barrier
you can just use the guide that was posted on how the guy gets to rounds 1000 solo and shit but i fu mean u just wanna leave ir console on and let um die on there own there is a way on top of the flogger and also on top of the main hut but the difficulty level is like 15/10 to do, ur better of doin split screen and kill one person and u jill off the zombies and when he comes back next round ( obviously u let him bleed out ) then hop in the cant stand here corner and either leave the 2nd player behind or let him die