They use the scavs triple barrels, greatly increasing their pellet count at the cost of 3 ammo per shot, the decreased accuracy, high recoil, and a wider spread. Because of its low accuracy and high spread it is not meant to attack enemies at a range, instead it is best used at point-blank range so that all of the pellets make contact and inflict grievous damage. Being a Hyperion-made, it has much higher rate of fire than other shotguns using triple barrel and therefore can deplete ammo at an alarming rate.
As with all shotguns which use the bandits/scavs triple barrel, the Focus Group is only comes in green or higher rarity.
In addition to the Focus Group, a variant of this weapon exists as the Crowdsourcing, made by the "new" Hyperion.
The Focus Group is obtained randomly from any suitable loot source.