after i mod my xbox how do i mod halo2(not for match making)

ok i moded my xbox but since i cant get on xbox live how am i suppose to play halo 2 with mods. and will i even get to mod halo2 if my xbox is modded or do i have to download more crap.

thank u for helping

 

dude, even if you werent going to mod halo 2 for matchmaking, or even mod halo 2 at all, Microsoft will ban you instantly.

 

but then how do i always see moders on halo 2 how do they do it?