It’s literally a ship weapon, but it’s a beam. Fires for decent damage for 3-7 seconds (tiers?), but to activate it you have to press a button within the ship. It has a cool down of 50 seconds after every use. These weapons always fire in the same direction, the front of the ship. It can’t be aimed, it just fires straight forward. To balance this, you could make it so it consumes large amounts of power or something so it can only be used once on a corvette, twice on a frigate, etc.
The staff tea, has been brainstorming different ideas regarding new weapons and particle shield fixes. Your idea is similar to what we were thinking about, although the weapon would only be usable on a large ship.