Hell, I've done maps for Doom II, and it can take a good five hours just to put together a semi-decent map for that. There's no way that you could whip a passable, much less GOOD map in any modern FPS in even an 8-hour workday, especially just one person. That said, I think the idea of charging for maps is ridiculous. Maybe it's just me, but I feel shortchanged enough by the shitty ending (lack of?) in Halo 2 - Bungie at least owes us something.
I "stole" this banner from a certain site. Scared yet? EDIT: DAMMIT!!! Hold up. http://img.photobucket.com/albums/v327/magicemperor2000/halo2_728x90_5x.gif Ha HA Nice try, Slug heads!