Yes. There are a lot of mods for Halo and Halo Trail on PC.
www.halomoders.com if not here contact bungie for support they could help you
Yes, you can mod campaign mod on the Halo trial.
no there is no mod to become Jorge in any Halo, I wish there was to be honest with you :]
There is no Halo 3 mod for Halo Trial. Halo Trial is one of the hardest versions of Halo to mod. There are however, custom maps for Halo Custom Edition. To get Halo Custom Edition, you need to have Halo: Combat Evolved installed on your PC, you also need your CD key. You can download Halo: Custom Edition free.
you can get grunt mods for halo trial but not halo pc. If you want a grunt mod for halo pc, then you will need to mod it yourself with HMT v3.5, Spark edit v3.02, and/or HHT v5.
it's ileagal to be a mod you idiot
Currently there is now way possible to mod with a USB in Halo Reach online.
the only way to mod in halo is to get a modded 360
You can't
a mod
no