In Episode One it can be found in one of the Supply Crates before the Combine Supply room. In Half-Life 2, Freeman can first acquire ammo for the grenade launcher in the chapter Route Kanal as part of a secret cache under the steam pipes next to a Lambda logo. In Episode Two, the SMG is found in Griggs and Sheckley's outpost, in the chapter This Vortal Coil. In Episode One, the SMG is obtained from Combine Soldiers in the chapter Urban Flight. In Half-Life 2, Freeman acquires his first SMG in the chapter Route Kanal from a Metrocop who rappels down into the storm drain system to intercept him. It is also widely used by members of the Resistance as a standard issue firearm. The SMG, along with the Pulse Rifle, forms the bulk of the Combine's small arms arsenal and is often carried by Combine Soldiers and Metrocops.
It sports two firing modes: the primary fire is fully automatic with a high rate of fire but poor accuracy the secondary fire launches a contact grenade which deals heavy splash damage. The SMG's appearance and function resembles that of the real world MP7, the main difference being a secondary, lower barrel presumably serving as a grenade launcher.
Rebels aiming at the Gunship with their SMGs during the attack on New Little Odessa.
