Not much gore, but several instances of lots of dead bodies laying on ground. Mentioned they are civilian.

Man shot in neck, blood spatters behind

Character gouges their eyes out off screen, shown with blood dripping from closed eyes

Character becomes possessed and spits up blood

Monsters made of bugs tackle people, no gore

Character is shot offscreen as a mercy killing

A lot of violence, but not very graphic. Many fast scenes and short shots.

Recreational cigarette and pipe smoking and drinking throughout.