Headhunters

Headhunters, as they're often nicknamed, are usually groups of well armed and well trained individuals with the sole intent to kill other groups or other possible threats.

Megacorporations employ kill teams to combat other corporate kill teams, or to destroy corporate assets. They are also employed to protect their own. PMCs are also placed in this group, along with members of military and government strike teams.

Standard operational procedures are as follows: if they shoot at you, shoot back.