Weighted by how often each weapon hits: gunnery 4, open ground, nothing moving, and every modifier a weapon carries with it - range brackets, minimum range, pulse -2, heavy laser +1, a targeting computer -1 on direct fire. Damage is MegaMek's own cluster average, so an LRM 20 is 12 rather than 20. An Awesome AWS-8Q now peaks at six hexes rather than one, because a PPC has a minimum range; a heavy laser boat stops outranking everything. `one_shot` is the asterisk beside a design whose damage is a rocket launcher it can fire once. Change-Id: Id468349cf934e56870906a5847f15a220df91e30