- last post: 01.01.0001 12:00 AM PDT
Halo CE is a multiplayer-only version of Halo. Basically, you download the 100+MB installer and run it, enter your CD key, and play it as if it were Halo. You can get it from the Gearbox Software main page.
There are user-made Halo 2 maps, but none of them have any direct involvement with Bungie. Custom maps ONLY work with Halo CE, so you need to install that first before you can play custom maps. But it's definately worth it. How often can you brag to your friends saying you piloted a Pelican with half your team in it on an assault on the enemy base?
You can find much of this stuff on www.halomods.com. Hope this helps.