Track Vipers are the elite tank drivers that are chosen to operate the H.I.S.S. II in Cobra's armored divisions. This might be the most ridiculously simple custom I've ever done (and I do a lot of simple customs)...
Parts: Head (ARAH Track Viper v1), Body (25th Anniversary Matt Tracker).
Step one - Dremel head to fit neck post.
Step two - Place head on neck post. Done!
Wish I was there!
2 months ago