In 1998, Cobra was renamed "Cobra Trooper". So while there are several names, they are all based on the "Cobra" trooper.
Accessories:
Cobra Trooper (v3) came with a black bayonet, a two part black bazooka with weapons ports (see below), a blue helmet, and blue straps.
Click the link to see the figure with all its weapons - All Geared Up!
Variations:
There are no known variations of Cobra Trooper (v3).
Body Construction:
Cobra Trooper (v3) was made using the arms, chest, waist, and legs originally used to make Ghost Bear (2004) with the head originally used for Range Viper (v2 - 2005).