you cant
you cant
you mod
you need to mod it. but you could search star wars battlefront ii 212 legion mod and there should be one i used it for myself and its good.
Yes
you cant mod ps2 only PC
http://www.moddb.com/mods/star-wars-battlefront-weapons-reloaded-mod
there is none you have to mod
hoi
you cant
there are alot of maps you will like mod maps
yes, link below-