ODST.
Commanding officer-UNKNOWN
Weapons-silenced smg,silenced pistol and silenced sniper/beam rifle.
I would customize my armor with advanced sensors and after few years in service, with motion sensor, probably with enchanted night vision, enchanted FFI vision and GPS on wrist(like the one from halo:reach armory).
I would be stealth based and would move.
CO-Sgt.Forge
Oh and also extra ammo holders.
And a medical pack on left chest.
Also reinforced armor at knees,hips,head,back.
[Edited on 08.27.2012 8:23 AM PDT]