What toles do i need to start modding and mapping?
I think it's called Halo Mapping Tools (HMT), and the last I checked, it's in version 3.5. You can get it at the filefront halo site, halo2.filefront.com, and search for HMT.
And Halo editing Kit (HEK) [COLOR="Navy"]here[/COLOR]
I would also reccomend several things:
Halo Custom Edition: Lets you use user created content (maps, weapons, vehicles, etc.) as well as having a feature called "developers' mode", which lets you input an exstensive amount of console commands. You can find that here.
If you get CE, you will also need to get this update.
I would also suggest looking at tutorials at this site:
And this place has some tutorials for both PC and CE...
Hope this helps!!