Changes

'''Rotor Cannons''' were weapons used by the [[Imperial Army]] and [[Space Marine Legion]]s during the [[Great Crusade]] and [[Horus Heresy]].{{Fn|1}} At least one version is still currently used by the [[Imperial Navy]] currently.{{Fn|3}}

The preferred choice of heavy weapon for [[Imperial Navy Breachers]]s, it is often referred to fondly with such monikers as "whirgun", "deck-cleaner", and "the [[Emperor]]'s Chainsaw". {{CME}}

File:VoidsmanRotor.jpg|Used by [[Imperial Navy]] [[Voidsmen]]with rotor cannon.