RB AI throws Grenades!

i think waht he means is, that hes played about 13rnds, and he decided to run on this one, and they now only follow this "run" route, and ignore the rest, as though they have either been deleted or just not connected.

I understand. I had the same problem on de_assaut. The first time I begin to rush by the hangar door and I run the whole map. When I added bots they always went to this door, for many and many rounds. When they were "bored" to die always at the same place, and as the "saw" me takink other path, they changed their way to attack too.
As I said before, the nodes are here, but just let them the time to understand the first path they took is not the only one... play a lot, and try to take the path they don't seem to know.