Barrel

Barrels usually contain large amounts of an explosive. when they are shot or recieve a large shock they explode damaging nearby units and causing a short term fire.

Controls
When Snake presses up against a barrel left on it's side pressing the action button will case snake to push the barrel. A rolling Barrel can knock over enemies or expode.

Guns of the patriots barrel
it can be seen from the trailers that the barrel has at least two roles in this game. It can be used much like the box from previous games and Snake can roll in it to knock over enemies.