Shooting this area will inflict bonus damage comparable to headshots. These creatures, though individually fragile, are volatile in large groups, and can hinder shield regeneration in smaller teams.
Instead, large, fragile sacs on their bodies act as weak spots and can be punctured (by gunfire or as reaction to melee attacks), releasing several Swarmers. Headshots will not inflict extra damage on them. Like any other armored enemy, they cannot be grabbed from over cover. Ravagers have high armour that acts as their health. When a Ravager dies it leaves behind a smoking pile of acid goop that causes environmental damage to any of its foes who step in it.
They will continually spawn small numbers of Swarmers to harass their foes. Ravagers are armed with two powerful long-range cannons that they fire in three-round bursts.