1. Left 4 Dead
  2. OUTBREAK
  3. Guide by CAPP360

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Left 4 Dead

Left 4 Dead

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Game action
Left 4 Dead
OUTBREAK

Catch a rare strain of infection, then pass it on to someone else.

OUTBREAK0
2 guidesOnline Mode - These achievements require a connection to live services for playing an online game mode, for sharing content, accessing leaderboards, or validating data with a server.Cooperative - These achievements can be obtained by two or more players in a cooperative game mode who have met the achievement requirements.Viral - These achievements are obtained by contact with a player who meets the requirements for spreading it to others.
CAPP360CAPP36067,941
29 Oct 2016 01 Nov 2016 01 Nov 2016
0 1 0
As Yazz stated above this is a viral achievement.

Pretty easy to get as almost everyone playing this game has the virus, but if anyone happens to need help with this feel free to message me and I can spread the love.