This game is flawed in the following areas: its cover system, combat, gun-play, all AI, etc. etc.
There is no way to ignore this and if you can't handle a lot of jank in a game, I don't know what to tell you besides I hope you consider the rest of this review.

Yet, I do think it's nonstop, brutally exhausting story is something I've never really experienced before. Most games typically let you take a break for some exposition or world building.

This game does not, all of it's story telling is during combat. The grimy slums of Shanghai are used as a horribly inconvenient battlefield. The neon lights reflecting off of the litter and stagnant puddles prove that even in the light its impossible to avoid feeling the darkness of this world. It's beautifully revolting to look at, the whole game. It's design is immaculate in that way.

The sound design is beyond anxiety inducing, all of the constant ambient noises grind against your conscience as your trying to focus on the horrifically awkward gun fights. The dialogue, even in its calmest points, always feels on edge from our titular protagonists; which in part, makes myself anxious as well.

Look, I could go on all day about the wonderfully distressing and impressive world of Kane & Lynch 2: Dog Days. I could go on about its jank and barren multiplayer.

All I'm trying to say is that this game is unlike any others, in the worst and best ways.