I looked up pictures of Doublecross/Twinferno.
The necks/arms look terrible. Both sides have large hollowed out gaps and such. That kind of thing was problematic on Scouts and Legion class figures. Over the last few years, Hasbro has been sneaking it on to the guns of larger figures. (Alpha Bravo and Hardhead are probably the worst examples that I would accept.) Now, they are cheaping out on significant parts of Deluxe scale figures.
(The arms/necks are prominent in both modes. And, the necks of a two-headed dragon are going to stand out.)
I am skipping this garbage.
According to the TFwiki, he's based on Lione from the Japanese Headmasters series.
That is why I did not recognize the figure.