The Fortress Artillery Cannon is an extremely large static defense artillery emplacement used by the Coalition of Ordered Governments to defend geostrategically important locations from invading UIR forces. These gargantuan cannons could load shells big enough to shatter a mountain's cliff side and break a ship in two.
The Fortress Artillery Cannon itself is defended by several smaller artillery cannons to fend off enemy forces that bypass the Fortress Artillery Cannon's blind spot. Due to its sheer size and length, the cannon has range so far that the COG needs to calculate Sera's curvature and rotation speed. Ironically, its sheer size and range is also a weakness as it is unable to hit targets that manage to go in close range, its blind spot.
One Fortress Artillery Cannon is found on the map Glory where it sits on top of a carved-out mountain that provides the weapon an impressive field of view. The weapon is an important event for an Easter Egg.
Mount Gearsmore Easter Egg
To unlock the Easter Egg, players need to shoot various books placed all over the map. Once all six have been shot in order, a seventh will appear in the 'Fountain' area, behind the turret. After shooting it, an alarm will sound and you'll have little time to activate a nearby button (located where the fourth book is). Doing this will cause the giant cannon to fire at the mountainside, creating a 'Mount Gearsmore' carving featuring Anthony Carmine, Anya Stroud, Dominic Santiago, and Minh Young Kim.
- Gears of War 4 (First appearance)
Behind the Scenes
- The cannon is a reference to the Schwerer Gustav, the largest and heaviest railway artillery gun to be ever built and put in military operation.