There's a shootout in a hospital, that leads to two men engaging in a long fight in a hallway, both punching and kicking, and slamming each other into things. One eventually breaks the other's neck, violently.

Two men engage in a long and brutal fight on a rooftop, both kicking and punching each other, and one eventually breaks the other's leg and arms, and then strikes his throat and breaks his neck.

A woman hits a man in the back of the head.

A man and woman brutally fight in a hallway, and she eventually beats him.

A security guard is shot point blank in the chest.

A man shoots a woman in a bank, and she dies.

A man's throat is slit. Lots of blood.

Two men brutally fight in a classroom, one breaks the other's hand and twists his arms many times, as well as striking and kicking him. He eventually kicks the other man in the neck, killing him.

Some strong swearing, 9 uses of the "f" word. Not very frequent.

The final fight is intense.

The hospital shootout/fight is pretty intense.

The bank scene is intense.