How many of your have TRIED modding? Yup.
I've made some mods for Halo Custom Edition on the computer. (mods like changing weapons/weapon strength, characters, ect)
Fun while it lasted.
Yes i tried modding, for Star Wars Galactic Battlegrounds, where i changed unit stats and looks along with some other things... (Even created Halo Characters...) i used a Geine editor tool that could of ruined my computer if i made a mistake along with some other things
But, Halo Modding is much different from this so, you need to have certain tools for each game you want to mod in.
Gets kinda confusing from there

BTW, SWGB has one of the most in-depth map editor tools ever... I mean you can make any effect you want using special triggers and conditions, for instance, you can set a trigger where if you move somebody to a certain place, 50 rancors appear and a feeding frenzy begins...