Sorry for the horrid title, I ran out of space.
I think it would make sense for the light interceptor to have the ability to pick up ammo racks the same way it picks up fusion cannons -- for an energy boost.
Right now there's only one ship out of three that can pick up ammo racks at all, which makes the powerup feel kind of unneeded.
Would be a problem in games where people use the standard ship. Maybe in singleplayer.