The link to this mod is in the video's description. It was made by very dedicated modders and it is probably one of the best SWBF2 era mods to date.
Uploaded and directed by Twinkey and Marth. Open the following link for more info about Mass Effect: Unification: http://www.moddb.com/mods/the-mass-effect-mod
Mass Effect: Unification is a mod for Star Wars: Battlefront 2
Music track is All Is Hell That Ends Well by Two Steps From Hell.