Every part of me wanted to enjoy THE LINE, and occasionnaly, while blasting enemy defenses with rock'n'roll music in the apocaliptic Dubai I did, but mostly, playing through the game was a chore. A straight look at the horrors of war with horrendous gameplay mechanics (this one reminds why I hate third person shooters) and rather lousy controls (you use the same button to jump or melee, the spacebar to run or cover). It basically plays like 'Frontline commando', yes the free app, and although the scenery is beautiful and many levels feature a lot of verticality within the broken buildings, it's repetitive as hell, and the mac version is a little glitched with weird performance issues and mouse lag.
The game had great press and reviews, hailed as the mature alternative to Call of Duty, but besides one great moment around the middle of the game, SPEC OPS is totally streamlined and would play exactly like COD if it was first person (and it would probably be a better game thanks to more reactive controls). The game plays on rails and there are no important choices to be made as advertised. You will be forced to commit atrocities and deep down the story (although inspired by Apocalypse Now) doesn't make much sense and the soldiers are rather flat, with no specific characteristics. There are other games out there that bring criticism to the genre itself and a much more subtle mind♥♥♥♥ (like Bioshock Infinite) with better gameplay, so i suggest you only get this if it's on sell or just watch the youtube movie that compiles all the cinematics so that you know what the fuss is all about.
PS: Coop and MP are virtually unplayable thanks to the controls (the same button does several actions so half the time it won't work, you'll hit an obstacle when you want to jump or execute a soldier when you want to melee the one next to him) and almost no players are online. Also the game is very sentitive to the hot corners on the mac so you have to deactivate them with a script or work around by adding an extra input key if you don't want to force pause the game when aiming through the barrel, breaking down the action and causing many unnecessary deaths.