Jun-A266 is a Spartan-III super-soldier and the last surviving member of Noble Team. He is currently the acting Chief of Staff and head recruiter of the Spartan service branch.

Armor: The VIGILANT was originally a one-off upgrade for an unnamed VIP within Spartan branch. Not intended for production, interest in the suit's feature set among Spartan scout-snipers has led to several being assembled for full evaluation.

Helmet: The full extent of the VIGILANT's surveillance and stealth capabilities remain highly classified. Observers have speculated the suit includes a new reconnaissance and fire control system for directing orbital artillery strikes.