Star Wars: First Assault
Check out the gameplay video from cancelled Star Wars: First Assault which was intended to be a competitor in the shooter market and would have focused on 8v8 battles in relatively small maps. The game would have showcased a variety of different weapons and would have been something that we had never really seen in the world of Star Wars gaming before. Though, the newer Star Wars Battlefront does have a very first-person shooter vibe to it, even if it doesn't exactly mirror what First Assault was going to be. What is also really interesting about Star Wars: First Assault is that the game was actually intended to be a prologue and lead up to Star Wars: Battlefront 3, which was finally going to be developed by LucasArts.
On April 28 2017 someone has leaked a Xbox 360 beta copy of the game, so if you have Xbox you can download for yourself online.