WSPDR Generators appear the mission Destroy generators to stop the transmission from Marshal Brass. There are seven of them and must be destroyed (or not - see the mission for more details). They have the hit points of a Minion of the same level and no defenses, so they can't do much to defend themselves, other than explode. When destroyed, any hero or NPC caught in its blast will suffer serious damage from the following effect:
This generator must be destroyed to shut off power to WSPDR!