Well infiltrator stealth armor is introduced but said to be added in the big infiltrator update in a couple of months I guess.
The problem with armor is it's both time consuming and complicated to make. We are working on more but I couldn't say when it will be done or what it will look like at this point.
Just make you sure you guys have a dedicated spot made for decals! Be it on shoulder, or even better, on the chestplates! Also on the topic... can we please have this? Just the belt, leg and boot armour... I personally don't like how overly bulky the Heavies currently look compared to the original plan.