The Pop Smoke special command is an order for a unit to place smoke near its location. This order is available for infantry equipped with hand-thrown smoke grenades, as well as vehicles equipped with smoke generators or smoke launchers. Pop Smoke is available only as long as the unit has smoke grenades available and/or its smoke launchers are not damaged.
Pop Smoke may be aimed using the Face command, or it will use the unit's current facing. A unit with a Face command at its location or a waypoint will always execute the face before popping smoke. When a unit has the combination of both commands, the normal blue line which shows Face on the battlefield view will change to a purple line (Face+Pop Smoke).
The duration and placement of the smoke screen depends on the unit that is executing this order, as well as the weather and wind conditions.