An almost perfect game with one major problem: Difficulty.
Pros:
-Amazing guns, with very cool secondary attacks that feel more like nathan hale has powers than attacks. (Ex: Slow down time to get a good hit with a sniper rifle.) Sorta like timeshift?
-Wide variety of enemies, from the standard chimera; Hybrids, Gray Jacks: Older hybrids that function like tall, fast moving zombies, And even real zombies, that at this moment I can't remember the name of. A cool feature with those zombies is that when they grab you and try to bite your neck, you can shake the controller to make them let go and bash them in the head with your gun, or give em a burst of bullets.
-The storyline is a great fill-in-the-blanks one. (You get confused on the background story, you look it up and find out more.) Intel helps with this too, which can range about what to tell people about your army career (serial number, name, etc.) to telling about a different unknown type of monster called a cloven, only fought in resistance retribution.
Cons:
-Punishing difficulty, and no checkpoints.