The 3-inch mortars of the battalion's mortar platoon give them immediate artillery support. The mortars are excellent for softening up the enemy before an assault and for knocking out enemy machine-gun nests. The SBML (smooth-bore muzzleloading) 2-inch mortar conducts overhead fire, throwing a 1kg (2lb) high-explosive bomb in an arcing trajectory, down onto the heads of the enemy, making it excellent at knocking out dug-in enemy troops. Includes three plastic 3-inch gun and crew sprues, six medium plastic bases, one plastic base insert sprue and one Unit card.