Lost species of the Covenant

The Drinol are Covenant beasts that are kept contained and segregated from the other forces. Possessing phenomenal strength, they are used to smash enemy vehicles. Drinols may have inspired a Flood form from Halo 3 known as the Tank Form

.

The Stalker is a deleted Covenant species seen in the Halo 2 Collector's Edition

DVD. Not much is known about this creature, but what is known about this alien is how they attacked; they would sneak up on their prey and tear it to pieces with their blade hands.

The Keel bug is a deleted Covenant species seen in the Halo 2

Collector's Edition Video. It was supposed to come into the battlefield, cut dead bodies into sections, and then fly off with them, as a way of cleaning up the bodies.

Alien Troopers are a deleted Covenant species seen in the Halo 2 Collector's Edition disc. It is unknown exactly what this seems to be. The only data known is that it carries its weapon under its belly, and was a precursor to the Hunter

in this aspect. It bears a small resemblance to Elites.

The Special Purpose Sniper is a deleted Covenant species seen in the Halo 2 Collectors Edition DVD. Its arms were used like a tripod (but not act like one), and that it could flip from side to side, without having to switch weapons. It would also be able to hang from trees and building struts. It could have possibly been used to replace Jackal

Snipers in Halo 2.