http://www.moddb.com/games/star-wars-battlefront-ii/downloads/scarif-modding-starter-kit-ch1-level-design
This includes some of the map assets featured in Gogie's brilliant Scarif maps for SWBF2.
Please note that Gogie does not wish you to post this starter kit elsewhere. Uploading the assets of a map that include these models is okay, though.