Okay !
I'm curious : is there an option allowing to spend milspec armors capacity to increase its armor rating ?
All I found is gel packs, and I'm not even sure it applies to these armors.
EDIT : the other combo I've heard of is SWAT armor + form fitting + PPP. Didn't made the calculation, but think it goes far further than milspec : FFBA 6/2 + SWAT 12/10 + helmet +2/2, you're already at 20/12, without PPP options, without magical or cybernetic options nor race modifiers.