Head: 25th anniversary Ace, modified
Entire body: 25th anniversary Stalker with Star Wars hands and modified leg to work with 25th Duke holster
Helmet: VvV Backblast
Parachute rig: combined elements of GvC and BBI parachute packs with Microman Chirico Cuvie breathing tank
What could've been a fairly easy head swap turned into a whole lot of work on the nuance and detail of accessories.
The parachute pack needed to be completely fabricated from parts and scraps pulled off of other figures and accessories. The clasps on it actually open and close, allowing easy removal.
When it came time to choose a head, something about the Ace noggin (which just never really felt like Ace to me) really resonated as the Joes' HALO Jumper.