Phoenix Logs/Banished Units/Hunter Captain
From Halopedia, the Halo wiki
Impervious Lekgolo commander.
The Hunter Captain is a superheavy hero employed by Colony. Their thick armor and massive shield makes them extremely durable, at the expense of mobility. Each Captain is armed with a modified siphon beam that drains health from those it attacks, and it can protect nearby allies by using a taunt ability to temporarily redirect nearby enemy attacks to itself. The siphon beam can be upgraded with an overcharge ability, increasing range, damage, and an area of effect.
Colony deploys Hunter Captains to locations where some element of its plan or Banished operations requires direct intervention and monitoring. One can be sure that all Banished Lekgolo colonies and gestalts will be operating at full efficiency if these “officers” are present in the battle. Each Captain is linked directly to Colony and its distant bond-brother over a specially modified battlenet relay. The Captains themselves exhibit individual peculiarities and attitudes, though none could be said to be personable.