The new weekly mutations for Left 4 Dead 2 are changing up the game in some creative ways. Through this framework, Valve can push live weekly gametypes that do not require additional assets to play, but change up the game in significant ways.
This week, players can try out "Bleed Out":
New MutationBleed Out
Your health is a ticking away!
With constant mobs chasing you, there's no time for standing around. You have no permanent health, only temporary health that is continuously ticking away. You won't find any health packs to restore your health, only pills and adrenaline. This mutation is for Campaign mode.
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