It's implied that an older man and young woman had sex.

A mans heart is ripped from his chest.

A monster rips man's arm off.

A monster punches another man in the head, so that the man's neck cracks open. Flesh, blood and muscle are exposed. Brief but gory scene.

A womans chest is ripped open. Lots of blood.

A monster rips his own arm off. No blood.

A monster is shot in the head. Pieces of skull and brain matter can be seen briefly.