Basic Infantry: Formerly the UNSC Marines, the Colonial Marines have been re-named due to the formation of the GSU which effectively re-branded the UNSC into the Colonial Military. Units are expected to receive upgraded weapons and armour soon, in due to the combined efforts of Human and Supernatural scientific endeavors.

Special Forces: Formerly known as the Orbital Drop Shock Troopers (ODST), they have now been re-named due to the formation of the GSU which effectively re-branded the UNSC into the Colonial Military. Units are expected to receive upgraded weapons and armour soon, in due to the combined efforts of Human and Supernatural scientific endeavors.

SPARTAN-IVs
Chemically and cybernetically enhanced supersoldiers, the SPARTAN IVs are the latest and last iteration of the SPARTAN super soldier program. With a mastery of all types of weaponry, vehicular activity, hand-to-hand and tactical decision making, the SPARTAN IVs lethality is only increased thanks to their chemical augmentations that increase their strength, speed, endurance and reflexes. This physical prowess is yet again further enhanced by state-of-the-art MJOLNIR GEN2 power armour that increases their physical traits exponentially, complete with protectie energy shielding.
Unarmoured SPARTAN IV units are able to lift 5 tons and run at speeds of 35mph. Whereas armoured SPARTAN IV units are able to lift 25 tons and run at speeds of 65mph. These feats have been observed to increase when SPARTAN units are in the middle of battle, where their combat performances are higher due to adrenaline.

[CLASSIFIED]