Even though I'm giving it a thumbs up, I have mixed feelings about this game. The Cartel is the worst game in the Call of Juarez series, but it does have a few features that other games in the series (and even many co-op FPS games in general) don't have and make this game somewhat unique and enjoyable to play. I would recommend this, but only when it's heavily discounted and you've got one or two friends to play in co-op with. It's not worth playing in singleplayer.PROS
-Good campaign mode with epic storyline, 4 endings and amazing soundtrack.
-Replayable: 3 playable characters each with their own objectives, perspectives, roles and different dialogues (e.g. talking with different characters on the cellphone). The storyline is character-driven so it may vary based on what character you're currently playing.
-Random challenges mid-game (e.g. kill X enemies before the other players). It kinda kills the teamwork sometimes but I find it to be a nice addition.
-Great variety of guns and configurable FoV (look in the Steam community guides)CONS
-The main menu and the first level (luckily the game gets slightly better afterwards).
-Technically horrible: graphics are worse than its predecessors and graphical glitches are not missing. Buggy, and audio could have been better (that's what you get for making Techland develop a Call of Juarez game primarly on consoles, Ubi♥♥♥♥).
-Gunplay is worse. Again, thank you Ubi♥♥♥♥.
-Delayed PC port, only thing we got is "low-medium-high" for the general graphics, messed up mouse sensitivity and that's it. Once again, thank you Ubi♥♥♥♥.
-Blur when aiming down sight.
-Car driving physics could have been better.
-No drop-in joining (players can only join your co-op match at the start of a level).
-Enemies are 100% accurate and grenades are useless.
-Multiplayer deathmatch is nothing special.
Personal rating: 5.8/10
Final comment: if only Techland had more time to develop this and made it primarly for PC it could have been a stunning game; it has co-op, the features mentioned in the pros are cool and the story is top notch, but the rest is heavily unpolished.
Tip before you play: don't tell your friends what your *personal* objectives are, what items you steal and what dialogues your character hears.