It might be MC, but for some reason I don't think they would release him this way. It seems like he would be a regular Bambaland sale like MGS REX. I think it will be something a little more exotic and exclusive like a Red or Blue Spartan, Sgt. Johnson or Cortana.
Make sense. The spartan seems more likely to drop.
If there are vehicles involve I will definitely go with 1/12. Space issues.