Madhelix

Not to be confused with the similarly-named which is also a Minihelix branch.The  is a Tier 5 Tank branching from,  and  at level 60.

Design
The looks more less like the  but with a  barrel layered behind it. It actually has two of these Stalker-like barrels behind it but one is layered over the other making it impossible to see the lower one.

Technical
Since it's a Minihelix branch, the can become invisible by standing still for a little while.