Sweep Launcher greatly increases the spread of explosive weapons, they are fired more erratically over a large area, because of its greater coverage it is particularly effective against large groups of ships, or grouped up modules. However, this does decrease the accuracy of explosive based weapons at range when focusing fire on a single target, but the spread will ensure that with each volley of explosive projectiles fired, a portion will strike its target and if attacking slightly clustered fleets, a majority of the volley will hit the enemy fleet and damage all the ships simultaneously.
Paired with antimatter warheads, this creates one lethal combination against stacked fleets or clusters of base modules. Despite so, it is an unpopular device for explosive weapons because it greatly decreases the accuracy of the weapon, making it far more difficult to destroy single targets. Antimatter warheads are used much more frequently because they increase the area of effect radius for the explosive weapons.