Heavy Cannon

The Heavy Cannon is a weapon in Doom Eternal. It is functionally similar to the Heavy Assault Rifle seen previously in  Doom (2016).

As before, the modifications available are either a precision scope for long-range fire, or a micro-missile launcher which launches small missiles with a narrow seeking angle: these explode with a small amount of splash damage a short time after impact. The scope functionality has been changed somewhat since the previous game, however: it is a drastically slower single-shot mode, and uses four ammunition per shot when aimed. The micro-missiles are essentially the same, save that there are now launchers on both sides of the barrel for a total of 12 shots between loading pauses.