You all could be right but I don't care trying 6 hours or even a day to get 1 jump and realising at the end that it isn't possible. The ladder+nade jump in the CoDmap Stalingrad springs to mind, tried that one for over a week. (was possible though

)
In my opinion there is always one jump left to find.
Btw, I saw a movie on youtube with a big glitch in CoD2. It's the climb eachother glitch. I also saw the demo on this site, climbing a wall with help from another player. But this was a whole different ballgame, they climbed way up in the air hangin on to eachother and landed on a roof. Could go outside the map from there.
Probebly you have already seen it and it is known but oh well, I'll post the link anyway
Link:
http://www.youtube.com/watch?v=jP5a6jtaI2k
Sam