Spec Ops the Line is an amazing game that was for the most part overlooked in my opinion. One of my favorite games of all time as far as storytelling and immersion are concerned.
Spec Ops is absolutely overlooked, and it's criminal, honestly. I think most people just thought it was some basic shooter that wasn't among the popular series in the genre, so they ignored it. Nobody realized that it is a daaaaaaark retelling of an already very dark story (Heart of Darkness). The atmosphere, the surrealism, the horror....sheesh. Quite a game.