I farmed for weeks now trying to drop "Smoke" and "Techsec" helmets and gloves on tier 5 with theses prioritized stats : Health, Melee, Grenade. I put Brawler economic mod on my ghost so I can drop them (I know it only gives more luck on drop with these stats) but it's been weeksssssssssss now and I still haven't got any of them with these stats they only drop "sometimes" on tier 4 gears, I droped them on bond, leg and chest (warlock) for both smoke and tech' on tier 5 (nice) but LOOOOOOORD never and I mean NEVER on helmet and glove (tier 5). Am I that unlucky, is it something missing in the game ? or something I missed ?