AH Guide: Left 4 Dead: Invincible Zombie Glitch | Rooster Teeth

Burnie shows us what to do when you encounter the rare "invincible zombie" glitch in L4D. Join FIRST to watch episodes early: http://bit.ly/2wf5zPJ » Get your Rooster Teeth merch: http://bit.ly/2uRi44x » Subscribe: http://bit.ly/13y3Gum About Achievement Guide: The Achievement Hunter Crew helps you get those achievements, one bleep bloop at a time. More Rooster Teeth: » Achievement Hunter: http://bit.ly/AHYTChannel » Let's Play: http://bit.ly/1BuRgl1 » Red vs. Blue: http://bit.ly/RvBChannel AH Guide: Left 4 Dead: Invincible Zombie Glitch | Rooster Teeth https://www.youtube.com/user/RoosterTeeth