Covenant Support Troops

You will encounter several different varieties of Covenant in each Firefight match. Each one has its strengths, weaknesses, and usefulness. Besides basic infantry and Brutes, there are some other characters to be aware of:

Drones (or buggies) are deployed in packs of 10 or more and are difficult to track down because they buzz around in the air erratically. They do not wear armor and can be killed with a single headshot, but it is difficult to do so because they are so mobile. Their bodies can take a decent amount of damage, so a pack of drones can chew up ammo quickly. Precision weapons (human pistol, Covenant carbine, sniper rifles) are generally ineffective because of the headshot difficulty. Heavy weapons (Fuel Rod, rocket launcher, laser) are ineffective because they are fast moving and there's too many. The silenced SMG and plasma rifle are your best handheld weapons, but given the choice, a mounted machine gun turret is easily the best option. Standard Drones carry plasma pistols. Drones can also come in the leader variety, which have a different armor color and carry the Covenant carbine. Drone Leaders are a good deal harder to kill, and effectively invulnerable when protected by an Engineer.

That brings us to Engineers. Engineers only appear in Firefight on Chasm Ten. You can always tell an Engineer is somewhere nearby because all the Covenant will suddenly appear shiny from their Overshields. The Engineers provide this shield to allies nearby, but it has a limited effective radius, so you can usually guess where the Engineer is. It floats in the air and will tend to drift away from fire. It can take massive amounts of damage from all weapons before it dies. The fastest way to kill an Engineer is with a single overcharged plasma pistol shot. One shot is all it takes, except when the harder skulls are on. At most, it should only take two overcharged plasma shots. When an engineer is present, you should make that your #1 priority because it makes all other enemies several orders of magnitude harder to kill. Some are effectively impossible. Engineers do not carry weapons, but they do eject exploding shrapnel when they die, so be aware.

Hunters appear on every Firefight level. They are deployed more as mobile tanks than as heavy infantry. They carry a plasma weapon similar to the Fuel Rod cannon that is permanently attached to their right arm. They also have a double lunge attack that can be devastating and is difficult to sidestep because of the secondary backswing attack after the first lunge. Their heavy armor and shield makes them impervious to most weapons. They do have a weaker area in back represented by the orange coloring on their mid-back. On lower levels, two plasma grenades or 2-4 human sniper rounds to this area will kill a Hunter. 1-1 on however, it is difficult to expose a Hunter's backside, so it's best to take them on teams of 2. On higher levels, it may take several grenades and signficant ammo to take one down. For Hunters, the best weapons are the human rocket launcher or Spartan laser, when available. Because their weapon is permanently attached, they do not drop anything when killed.