I refuse to entertain this debate, but I something does need to be pointed out here. Read the fiction on bungie.net regarding the maps. Two of the maps - Snowbound and Valhalla - appear that way because they are not previous battle fields, they are the arctic and the middle of the wildernes.
Originally Posted by 3rdamention
Resistance did a great job of creating this lived in, war torn, dirty world. As of right now, Halo 3 looks so clean, like the world is brand new and nobody has ever been there.
High Ground is a military base that's had the crap kicked out of it. It's not "clean" by any stretch - there's rubble, dirt, aging, debris and destructable objects all over.