If Spec Ops: The Line was a movie instead of a game, and had released this trailer in 1994 instead of 2010, with all that slo-mo and Alice in Chains, it would be just about the most awesome thing ever.
Since it's not, though, we have to take it for what it is: a shooter that lets you use terrain to shape the battlefield. Somewhat unique, sure, but that won't shake the fact it's also about a team of American soldiers fighting a war in a country full of sand, which is less unique.