Needler Sentinel

The Needler Sentinel is an aggressor sentinel variant that can be found on the Halo 2 campaign level Quarantine Zone.

Overview
Unlike other Sentinels found in the game, this Sentinel fires Needler rounds rather than the conventional Sentinel beam and when destroyed, it drops a Needler.

This variant was supposed to make an appearance in the game. It was removed permanently from the finalized version of Halo 2. However, one tag remained within the game, due to oversight by Bungie staff.