Covenant guard tower
From Halopedia, the Halo wiki
The Covenant guard tower is a mobile ten meter tower equipped with a single[1] Plasma Cannon used to defend the perimeter of an encampment. Unlike the similar Deployable Lookout Tower, the guard tower apparently does not make use of a Gravity Lift, instead spiraling upward from a treaded base.[2]
References
- ^ Halo: First Strike, page 28 ("The nearest guard tower tracked her; its plasma cannon flared and fired.")
- ^ Halo: First Strike, page 27 ("Guard towers punctuated the valley; they spiraled up from mobile treaded bases, ten meters tall and topped with plasma turrets.")