Sentinel was on overwatch hidden in the brush on top of the bluffs with his sniper rifle silenced and ready to do it's grim work. Sentinel in position and awaiting instructions.
Finger on the trigger, eyes down sight, breathing steady and slow... laying on the ground in a ghillie suit with natural vegetation covering his presence the super soldier was in the zone like he hadn't been in a long time. No chatter, no banter, just a ghost in the night...