Rainman achievement (Help wanted!)

Hey all! I'm currently sitting on all the Halo 2achievements bar the rainman one. If there's anyone out there in dire need of this achievement as well, please send me Pm on the forums and we can arrange a series of matches to complete this achievement! :)

Thanks!

Violent Cartographer is glitched for me. I've play every maps, for a full game, many, many times. Is rainman the one for all default game types?

Yes it is!