A man gets shot in the face with a shotgun, the screen cuts away before anything actualy happens. The killing itself is implied (no blood and no gore).
A man gets shot in the chest twice, little bit of bloodshed can be seen.
The only death scene which could be considered as slightly graphic is the scene in which a man gets impaled on a sword.
A man is implied to be cut in half by falling elevator machinery. Brief with no visible blood or gore.
A man is accidentally killed by his own hand grenade. His death is not shown, but an explosion is seen.