Gun Turret
From Halopedia, the Halo wiki
Summary
The UNSC gun turrets are valuable weapons in taking out a large number of enemy forces fast. There are three types of UNSC turrets: Fixed, Portable and vehical mounted.
The gun emplacements are mounted in various positions throughout the Campaign game and appear in a number of multiplayer maps. While using one you are extremely exposed to enemy fire: you immediately become a target that all good commanders will order neutralized with haste. A simple grenade or rocket explosion can destroy the whole turret, and snipers or really any weapon with a scope can take you out. You are also vulnerable in the back, for turrets have a limited range of motion. They are very handy in reducing an enemy force or giving vehicle drivers anguish with their unlimited ammo supply.
The 30 Cal comes in three variants in Halo: 2; the standing turret with a plate of armor to protect its operator from incoming fire. This one is used as a defensive weapon usually by the UNSC. The second version is the mobile version in which the main gun is placed on a foldable tripod or bipod for quick relocation and setup in the field. The third variation is mounted on the loading bay of the pelican drop ship, it gives supression fire for unloading troops. (This model comes with a optional 25mm grenade launcher for use against vehicles or possibly firing smoke grenades) Although not as powerful as the LAAG it still has a very high rate of fire and powerful rounds. It is excellent against infantry and useful when trying to destroy an enemy vehicle.
Technical Data
Caliber: 7.62mm Damage: Medium Range: Long Accuracy: Medium Rate of fire: High Autofire capability: Continuous fire Ammunition: Unlimited Scope: No