Combi-bolter
Fires as a bolter but may re-roll any misses in a Shooting phase. Each miss can only be re-rolled once.
Combi-flamer
May fire either as a bolter or as a flamer. May only fire as a flamer once per game.
Combi-melta
May fire either as a bolter or as a meltagun. May only fire as a meltagun once per game.