What is the longest you've gotten on black ops Zombies?

On Ascension I think my sister and I got to Round 14 :\ we were playing split screen on a 32 inch tv, so that's pretty good! Lol and on Call of the Dead I only got to 9 because I got stuck behind a box when George came out of NOWHERE! Haha on Kin Der Toten I got to 29 and Five I got to 22.