
There's really nothing to it, just drilling a 5mm hole in the gun turret where the Titan Master butt would sit. Trade Blitzwing's gun with his wave-mate Octone (Octane). Finally pull the arms & turret out from their sockets and put the parts together like Lego.
The mini tank's turret can turn about 90 degrees (45 deg each side). And the jet & tank scale pretty well!
The jet fighter is of course much sleeker now.