Casually spreading missinformation on forums.
Heavy armor has just better bullet and bomb protection and the same speed. Look at: Heavy m3 Armor, is it in a good place, can we add or change something about it to make it "better"? - #17 by Cabal
B12 beats every armor available for PFCs with exception of Light Armor. You want to be fast, but still have armor? Light armor. Anything else? B12.
We don’t need new armors, we need old ones reworked and rebalanced.