Step one: Cut a small section out of the back assembly of Stormjet/Leozack
Step two: remove Barricade/Jaruga's gestalt head panel(no picture required really) and Stormjet/Leozack's skirts(again, no picture needed)
Step three: Configure Barricade/Jaruga
Step four: Configure Stormjet/Leozack
Step five: Plug Stormjet/Leozack's skirt pegs into Barricade/Jaruga's fist holes
Step six: Add other limbs
That's it.
I plan to take it a step or two further with a remolded head, Deathcobra extra limb and hollowed out Battle Ravage arms. And of course, paint.