I posted the addy a few days ago that makes you switch teams I think, I'll post again in a sec...
...Never mind, seems to be worthless
Removes you from both teams, if you have enemy nametags on, they disappear and so do your own team's nametags
Memory((LPVOID)(0x372DB65B), "\x90\x90", 2);
JNZ to 0x372DB6B4
I think this address is different from the one Fabulous was talking about