User blog comment:Dragonzzilla/ME3 Multiplayer DLC I Ideas/@comment-4967682-20120430002056/@comment-4967682-20120430005301

Also: "All known forms of Collectors can generate permanent stasis fields around themselves with biotics, creating nightmarish red-shifted energy fields that protect them from oncoming fire."

I have a feeling it'd be a bad idea to give all basic infantry units that ability, since it'd render the Guardian's bubble shield useless. A Guardian is sufficiently distinct in it's current form from other elite class units, and could keep it's same powers (Warp Ammo, Bubble Shield, Barrier), durability (stronger than average barriers and health due to their barrier ability) and weapon (three round burst rifle) without much modification. Drones and Assassins would need more abilities. Maybe Drones can just be given frag grenades? It doesn't exactly fit the asthetic of the Collectors, but Cannibals use them, and it doesn't exactly fit the asthetic of the Reapers.