Guy Ritchie-directed Call of Duty: Black Ops 2 live action trailer sees Robert Downey Jr in a jet

Activision has released a live action Call of Duty: Black Ops 2 trailer that is littered with celebrity appearances.

The Guy Ritchie-directed TV spot, dubbed Surprise, sees Iron Man actor Robert Downey Jr in a jet.

Whose face can you recognise?

The trailer is set in a war-torn Los Angeles, circa 2025. There are bombs and guns and bullets and all the rest. Oh, and there's a horse.

"Guess who brought a jet to a gun fight?" Downey Jr asks before... well, see for yourself.