Head: ???
Torso / arms: Duke
Upper legs: Duke
Lower legs: Shock Trooper

Alley Vipers, Cobra's most elite urban combat experts. Rising up from the ranks of Shock Troopers, Alley Vipers must be able to endure physical punishment unlike any other Cobra specialists including performing their duties during tear gas attacks without a gas mask.

All Alley Vipers must endure this training including snipers. Imagine trying to take a shot with smoke and tear gas choking the air. Alley Viper sniper teams must show a minimum of 85% accuracy in those conditions.