Doing metcalf keep missions, are missiles the only ship based attacks that do splash damage to surrounding turrets etc or do plasma accelerators or fragment canons also hit multiple targets?
Plasma has splash damage, cannons too. Frags are like a shotgun, every fragment hits individually over a big area, but every fragment does not do splash damage.
The splash damage area is not that big though on cannons and plasma, but when hitting ships, you can damage more than 1 subsystem with them.