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]


  1. Halo: First Strike, page 28: The nearest guard tower tracked her; its plasma cannon flared and fired.
  2. 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.

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