Orbital or outlander combat suppliers don't buy or sell simple or "flak" helmets. Or plate armor. It seems weird.
They are propably under StockGenerator_Clothes instead of StockGenerator_Armor.
Adding them under armor propably makes marine/recon helmets and armor rarer, since all armor traders roll from a bigger pool.
For Cynapse, definitely. Thanks!
Fixed for the next build. Thanks for the report!