SC2Mapster

/Automatic/ Gatling Cannon
Firing ballistic ammunition, the Gatling Cannon boasts the highest fire rate in the game. However, the range and damage falloff makes his weapon truly weak at long range yet deadly at close range. Best fitted on fast, light ships or as a defensive measure on large, immobile gunships.
Effective Range: <5km
Damage: 4 to 6
Period: 0.22s
Cost: 180

/Automatic/ Dual Blaster
Super charged lasers both charge and fire in synchronous blasts causing large potential damage and unparalleled armor negation. Blaster technology out-ranges Gatling cannons, yet not considerably.
Effective Range: <7km
Damage: 2*(8 to 12)
Period: 1.1s
Cost: 230

/Automatic/ Quad Blaster
Improvements in energy usage and coupled electronics have created a Quad-Blaster which retains the fire rate of its predecessor yet with effectively double damage output.
Effective Range: <7km
Damage: 4*(8 to 12)
Period: 1.1s
Cost: 290

/Automatic/ Neutron Flares
Salvaged Protoss technology, the Neutron Flare emits a violent burst of psionic energy concentrated on a point, internal to an enemy ship. This allows great armor negation. This weapon has extreme damage potential when it's effective range can be maintained.
Effective Range: <3km
Damage: 10 to 12
Period: 0.5s
Cost: 420