Type 18 Stationairy Turret

Similar in design to the Shade, this turret uses technology similar to the Needler to fire a pair of explosive projectiles with a limited homing ability. Like its cousin the Shade, it has a sheilding system to protect the operator, but has the same open spots as well. Explosives are very effective against this turret, as with the Shade.

Appearance
The Gheist is made up of two parts: the lower support and upper firing mechanism. The lower support is a circular pad of metal topped with a mini-grav lift, and ringed with four spined legs, which holds the firing mechanism aloft in a similar way to the standard shade. The upper firing mechanism is a bowl shaped system floating roughly two feet above the lower support. The front area is dominated by an energy shield, which can be pierced by repeated gunfire, though it takes a significant amount of rounds to do so. On both sides, a pair of wing-like extensions hold the weapons, which each look much like two needlers welded together on the underside. Firing controls line the inner part of the turret, which are vital to firing the weapons.

Weaponry
The firepower of the Gheist is not to be underestimated. While the weapon emplacement is not as deadly as say, the Type 12 mortar shade, it is still extremely powerful. The Gheist fires a pair of explosive rounds in unison for every pull of the trigger, which have high penetration qualities and each pack the forces of a needler chain explosion. The Gheist was well known for it's ability to pierce armoured vehicles and then detonated inside their armor, destroying critical systems.

Deployment
The Gheist saw relatively limited deployment during the Great War, being used in only a handful of battles. However, one of these weapon emplacements was used on SPARTAN-104 and 087 during the Battle of Reach, after the duo successfully destroyed a covenant capital ship with a tactical nuclear device.