All 25th parts
Head, torso, and arms = Firefly
Upper legs = Roadblock modified
Lower legs = Wave 7 Snake Eyes
Helmet = Original hollowed out
Backpack = Original modified to fit 25th figures
Vest = Beach head modified

The ALLEY VIPERS are the Cobra equivalent of a police S.W.A.T. unit or British S.A.S. (Special Air Service). They form the spearhead of Cobra's inner-city invasion forces. This elite contingent of marauders are true masters of brutality, possessing a style of ruthlessness not present in other Cobra soldiers! Recruited from Cobra's most diabolical combat divisions, Alley Vipers use various forms of treachery to achieve their objectives! In order to graduate from their training program, they are required to survive a full burst of machine gun fire across their frontal body armor, execute a thirty foot jump onto concrete with full combat load and run down a hundred meter gas-filled corridor without a gas mask!
"Alley Vipers are big and strong as well as ruthless! Their body armor alone weighs 50 pounds and they carry at least 30 pounds of weapons, ammo, grenades, and climbing gear. You definitely don't want one of these gorillas running up and kicking your door down!"