Missiles, drones and turrets oh my!
What can we do as a squad to handle Geth Prime opponents before we get creamed?
Is it true that you can shoot down their missile? Is there any particular weapon requirement for that?
In my experience, follow these rules.
These tactics work equally well for Brutes, Banshees, and Atlases.
Energy Drain at max rank will completely kill a Prime's shields, unlike Overload ranked for max damage. Reave, combined with high-powered sniper fire, Incinerate, and/or Warp, will easily kill him once he's stripped down to armor.
However, Chain Overload will easily deal with his Combat Drone, but you will need to watch out for the turret he'll toss around.
Also, Primes use a Plasma Cannon, so I'm not entirely sure you can "shoot it down."