No nudity and no sex scenes. Not even kissing.

In a fantasy sequence, the main character envisions killing the heroine of the movie. In real life, he fixes her wounds, pulls a hunk of shrapnel from her leg, and stitches her leg up. Blood is shown.

There's a huge explosion at the climax.

a bad guy shoots and kills a guy in the head not shown

The main character is a trained killer, and he shoots and kills several men over the course of the film. Bad guys shoot back at him and blow up a car.

23 f words and other mild profanity

Language is fairly infrequent but includes about a dozen uses of "f--k" and a couple uses of "s--t". "Bastard", "ass", "Jesus Christ" (as an exclamation) and "oh my God" are also used.

The main character claims that he "was a drunk" but that he gave up drinking. Nonetheless, he's seen drinking alone in a hotel room early in the film. A minor character also claims that he hasn't had a drink in three years but drinks a shot of scotch.