Adrenaline Suit
The adrenaline shot being injected into the merc's system
The Adrenaline Suit is available for Mercs in Tom Clancy's Splinter Cell: Blacklist multiplayer mode. It's special function is the ability to use an adrenaline syringe that heals all your wounds, boosts speed and increase visibility in dark areas. The vision effect involves zooming out a tad and saturates the color for clarity improving light efficiency.
The Adrenaline suit is the torso in the default, starting Spies Vs Mercs class; peacemaker. The peacemaker is most suited for combat with armor in everything except for the quick reload gloves, adrenaline, and the heavy hitting Ak-47, and desert eagle, with two frag grenades, and motion sensor vision mode.
The difference between normal view and adrenalised, note the vision macro and colour saturation