I swapped out my rifle with an EMR sniper rifle I found on an enemy corpse. While running in 3rd person I notice the default AT rocket launcher (the green one with black ends) looked different, was a longer slender tube with the tech desert cammo pattern. It also showed up in my inventory as an RPG-7.
As I doubt a Marksman would be carrying an RPG-7, I can only assume at this point that the swap changed my existing gear for the same gear of the other faction.