Black ops 1-3

A soldier in tactical gear hangs from a railing inside a building, then the scene cuts to a first-person view of a weapon firing, followed by a soldier firing a pistol in an urban combat zone with explosions, then a soldier in a crouched position firing a weapon in a war-torn environment, then a figure in a dark, snowy forest, and finally the title card for Call of Duty: Black Ops.