Head / torso / arms: Night Viper
Legs: Beachhead

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 grenadiers. Imagine trying to take a shot with smoke and tear gas choking the air.