Recs.
Updated
SpecsUpdate
Pros
Pro A dark exploration of whether the player has a choice
It is up to the user on how the take in the meaning of the content of the game. There are not cutscenes, everything is portrayed by gameplay, which makes the interpretation somewhat personal. This type of presentation also explores whether the player has any choice in what they are doing in the game, which can be liberating while also weirdly strict.
Pro Strongly questions YOUR (the player) morality
If you play Spec Ops: The Line as another cover shooter, you are going to be disappointed; gameplay isn't this title's strongest point, YOU are. YOU have a role in the opening credits, indicating your involvement not just as the player controlling the protagonist, but as a decision maker who subconsciously agrees with his motive to save the day. The story makes you dwell deeper into your preconception of right and wrong. The decisions you make (or the protagonist) makes seems to be right; all for greater good as per the Army jargon, but the proceeding and the impacts will show the flaws in it, descending the story into a dark abyss of hopelessness. In the end remember; it was YOUR decision to keep pushing and trying to be a hero...
Cons
Con Dark ending(s)
For a game with some solid choices, there are no good endings. The game's intention is to make the player think before spilling more blood onscreen and it nails it. But the same dark tone continues irrespective of your choices.
Regardless of a few good deeds (if at all) the player chooses, the purgatory soon leads to hell and nothing changes it. You are just trading one hell for another.