Nothing.

A bad guy is set on fire with a molotov cocktail.

A few fight scenes; the fighters end up pretty bloody.

Some people get shot; a few scenes are pretty bloody.

Some people get their necks snapped.

A character gets shot in the head; blood oozes from his wound, but he survives.

Around 10-15 f-words, some milder language, and a few derogatory remarks towards Asians.

Nothing.

Most of the fight scenes throughout are pretty intense.

There's a short but brutal shootout at the end that's also pretty sudden.