Sweep Launcher

"The Sweep Launcher increases the spread of Explosive weapons, annihilating even the largest fleets or bases."

General
The Sweep Launcher boosts Explosive weapons by increasing their spread, allowing their shots to deviate further from the primary axis.

Advantages
Sweep Launchers improve the chances of hitting at least one target. It also becomes more likely for your weapons to hit multiple targets that are spaced far apart.

Disadvantages
While Sweep Launchers pretty much guarantee a hit, it comes at the cost of accuracy: against a single target, almost none of the shots will connect even if the target does not move.

AM Warheads are generally a much better choice as the extra AoE guarantees an overall increase in damage output.

Trivia

 * It is the only special that increases a weapon's spread.