Hazmat Troopers wear special heavy armor and can survive significantly more damage than any other Helghast soldiers, able to survive more than twice as much damage as elite units like Commandos or Elite Shock Troopers. Although they appear frequently in cutscenes, such as collecting irradiated petrusite only a handful of them are actually fought throughout the game, with a few appearing scattered throughout the Stahl Arms research facility, and two troopers appearing among the final opponents defending Chairman Stahl's escape at the end of the Helghast space station.