I remember we'd had a conversation about the weapons back on the Lively class and if I remember right, and I think I do, since this is how the weapons are on that ship, that the Ion cannons are more powerful than the laser cannons. The Lively's 10 inch ions being Tier 11, compared to the 10 inch lasers being Tier 8, so I was carrying that theme over to the larger weapons, with 24 inch ion cannon being probably the largest version of the weapon for shipboard use. I can change the numbers to be 36 inch ion cannon if its too confusing.
Will make the other fixes shortly