there may be a problem with the ground set bonus. I originally got the all three pieces MK X. Then I accidently sold the rifle. So I had to get all three pieces again (MK XI). I have all three pieces equipped. When I am in space, the equipments state that non of them exist . If I remove the rifle, they say that only two exist (correct). Luckily on ground missions everything works out fine. But still it's a bug!