Probably ,because I played halo reach on a map that looked a lot similar to Blood Gulch , so probably.
no
You have to download multiple things to swap the models of players, ora new gametype.
no you can not but there isn't that much really
n-o spells no
yes you can (this is a question): HOW!?!?!?!?!?!?!?!?!?!?!?!?!?!?!?!?!?!?!?!?!?!?!?