In a flashback from Afghanistan we see a lot of people being shot and killed (only a little blood)
Out of frustration concerning a job application to the LAPD Jim starts hammering his fists against the steering wheel, when he discovers that another man is watching him, he gets out of the car and smashes a beer bottle on that mans windshield
When Mike and Jim exit a liqour-store they see a man with a gun, chasing another man and he fires the gun a couple of times (but we don't see him hit anything)
Jim fights some men and eventually mugs them as he threatens them with a gun. He kicks one in the back.
A man is killed by being stabbed in the throat (with extremely bloody results)
Jim holds a gun to his girlfriends head and verbally threatens her.
Jim squezzes a mans neck very hard when he refuses to go with him in the car.