It makes no sense to combinate the nano suit and the MJOLNIR MK. 6. The nano suit gives you more speed, strength, armor and the ability of invisibility.
The Spartans are "modified" to have more speed and strength. If both should be increased, the Spartans aren't able to fight because they were too fast do move quiet and accurate. The ability of invisibility had the spartans and the function to get more armor like the nano suit can't work because of the energy shield of the MJOLNIR.