Cannibal

Cannibals are husks derived from batarians that have been captured and mutated by the Reapers during their invasion of the galaxy, which began in batarian space. During the Reaper attack on Earth in Mass Effect 3, Cannibals form a significant portion of the Reaper ground forces, along with Husks.

Capabilities
Offensive

Cannibals possess a large gun held in place by a human corpse that serves as an arm. This gun is fairly powerful, and can kill the player easily if they're not careful. From this same arm cannon, they can also launch Frag Grenades. They can also use Melee attacks, trying to grab whatever gets close to them.

Defensive

Cannibals have the ability to regenerate health by consuming other fallen enemies on the battlefield. They often take cover to avoid fire, albeit not as effectively as Assault Troopers. When Cannibals consume fallen enemies, they gain plating on their body which protects them from damage in that area until they are shot off.

Tactics

 * Incendiary Ammo is a good idea when engaging large numbers of Husks and Cannibals; the bodies of the dead will burn away, leaving no corpse for the Cannibal to devour; or use Cryo Ammo that'd shatter the body upon death, which also leaves no corpse for the Cannibal to consume.
 * Cannibals will often disregard cover to devour a corpse, leaving them open to attack. Shooting them quickly will prevent them from growing armor plates.
 * If you can time your shot, you can stop the Cannibal from growing armor from consuming a corpse, but the corpse will dissolve as if they had, denying other Cannibals the opportunity.
 * If the cannibals do not have plating from devouring, a cloaked infiltrator with a high power weapon (e.g. M-98 Widow, Black Widow, Javelin) will kill them instantly anywhere on Bronze, and occasionally on Silver depending on the weapon.
 * Cannibals remain vulnerable to biotic powers such as Throw and Pull while they are feeding on a corpse. Using these powers can interrupt the feeding process and prevent them from gaining armor. In addition, the physics-based damage of Throw is unaffected by any armor plating a Cannibal may have.