AM Warheads

"AM Warheads replace the conventional warheads used by Explosive weapons, increasing the detonation radius."

General
AM Warheads boost Explosive weapons by increasing their area of effect, resulting in a larger explosion.

Advantages
AM Warheads increase the chances of hitting multiple targets with each explosion, therefore multiplying the damage dealt to opponents.

They can also potentially improve the accuracy of your weapons if the warheads explode close enough to enemies, which occurs near maximum range for most weapons.

Disadvantages
AM Warheads are useless against skilled opponents that spread out their ships such that the AoE can only damage one at a time, making this special a complete waste of mass.

Trivia

 * The "AM" in AM Warheads stands for Antimatter.
 * Despite being called "Antimatter Warheads" its AoE would be much bigger if actual Antimatter was used.