To further degrade every gunner's vision, mortar smoke should also be requested. It can be fired on the enemy gunners or between them and friendly vehicles. This prevents enemy gunners from tracking vehicles and guiding missiles to the vehicles. There are five specific ways that mortar smoke can be used in support of defensive and retrograde operations. Ideally, this technique employs mortar and artillery smoke, HE ammunition, and scatterable mines or chemicals together.
Smoke is fired to the front of the attacker.
The smoke should be fired beyond the range of direct-fire weapons to give the defender more time to engage targets. Slow the Advance of Attacking Forces. This technique causes the attacker to reduce his speed, thus slowing the momentum of his attack. It is employed by firing smoke across the front of the advancing enemy. HE rounds are also fired with smoke to make the enemy button up his tanks and personnel carriers.