Skull Squad Trooper was released as part of the 2006 G.I.Joe Convention ("Heroes Unite" in New Orleans, LA) exclusive Cobra's Most Wanted: Mercenaries! box set from the Official G.I. Joe Collector's Club. The set included:
Cobra Mortal,
Major Bludd v7,
Overlord v2, six Coil Troopers, and six Skull Squad Troopers.
Versions of Skull Squad Trooper:
This was the only version of Skull Squad Trooper made.
Accessories:
Skull Squad Trooper came with a gray machine gun, a gray grenade launcher, a black helmet with the red and white Skull Squad logo, and a figure stand.
Click the link to see the figure with all its weapons - All Geared Up!
Variations:
There are no known variations of Skull Squad Trooper.