SW Battlefront 2: The Jedi Temple mission.
Most badass, epic, glorious, wonderful, EVIL mission ever.
Really, why Lucasarts decided to do a sequel of their FU game instead of giving us BFIII with space-AND-land battles (with say, 64-player online) is beyond me.
Can you imagine online, 50 people as the clones, with maybe 100 more AI clones, going zerg rush on 10 jedi? It's AWWWWWWWW RIIIIIGHT