Home > Games > L > Left 4 Dead > Achievements > Pyrotechnician
Blow up 20 Infected in a single explosion.
0 gamers found this guide helpful
At the start of Dead Air, pipe bombs spawn. Throw one of them down where all of the zombies are, and you should unlock this.
Xbox, Xbox Live, and all other Xbox Live specific terms are registered trademarks of Microsoft Corp.
© 2016 MyGamerProfile.net. All rights reserved.