Commando: Rolling Thunder

 is a challenge in Risk of Rain 2. It is completed as by killing an.

Tips

 * In multiplayer, only the player landing the killing blow will complete the challenge. The challenge is also not completed if a non-player ally like a drone kills the Overloading Worm.
 * Playing on and activating Shrines of the Mountain can increase the chance of an Overloading Worm spawning during the Teleporter Event.