I have thought this over a million times, so here it goes:
Star Wars: Infiltrator
Gears of War-like open space shooter. You are an Imperial master spy sent to infiltrate into the rebel military. Location of the Tantive 5? Your work. Hoth? Your work. But nearing operation Endor, you're having second thoughts...
Includes famous commando action...possible cameo's from Kyle, Luke etc...
"I think the Devil ****s Dutchmen."