Right now your character is brokenly overpowered. There's no reason for him to be scared when he can withstand the force one a claymore mine detonated right next to him.
However I love spy movies so I am willing to help.
Hybrid Kevlar Suit, gotta be covert. Wear a light weight stylish suit and jacket that can stop low power bullets.
Hidden non-metal camera, maybe in your eye? Non metal as to not set off metal detectors.
A standard accessory that works as a weapon. Maybe a watch that acts as a tazer?
High power laser pointer. Something that can cut through a chain link fence from a short distance.
Silenced pistol. James Bond was pretty sexy with one.
Either way, your story takes place in four years, and most of your technology is more advanced than halo. I recommend toning it down.