We have a direct damage and aoe versions of torpedos, but the lightning guns are only aoe. We sacrifice single ship dps for dps to alot of ships at the same time. I think energy weapons should have a direct dps equal.
The Large Plasma Recycle Turret LPRT will be the beam turret equal with large weapon slots. This will have a beam animation, but thicker and brighter. This weapon will actually deal dps, damage per second, but no damage per shot. The weapon will have a charge time, maybe 3 seconds, and the beam will continuously fire at a target until it is destroyed. So, say the weapon has 25 dps, as long as this weapon is firing on a ship, that ship will be taking the said 25 damage every second, until it is destroyed. I say 25 dps because the level 5 torpedo launcher has around 22 dps. It will take 300 mw of power like lightning guns. When a ship is finally destroyed by the weapon it will then need to cooldown. This cooldown is dependent on how long it takes to destroy a ship, for every second it is firing on a ship, it will need to cooldown for 0.5 seconds. So, a syntis battleship with four of these, 100 dps, it will destroy a syntis dreadnought in 72 seconds, and then need to cooldown for 36 seconds. This downside means that using more of them your weapons will suffer less cooldown. Now you have 5 battleships, 500 dps, it will destroy the dreadnought in 14 seconds, and will cooldown for 7 seconds.
Id like it to be noted @joe that the lightning gun nerf was terrible. Now the energy version of large weapons deal less damage than the kinetic version, that breaks the whole rule of energy does more damage, but are blocked by shields.