Membership by invite only
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Gameplay Stats
Steam Rating:
5.6 Playing time:
143.6 hrs this week Member Avg:
18 hrs past 2 weeks 
94.6 hrs
44.7 hrs
3.2 hrs
Steam Group
Zombie Defense Organization ((ZDO))
Profile _
Welcome To the ZDO
Since February 4, 2009
United States 
So far, this is a private group of players from the Left 4 Dead (L4D) servers. We are not actively seeking recruits.
ZDO Forums
Announcements _
http://www.gametracker.com/clan/((zdo))/
Create a profile over at gametracker.com and join the clan there! We are OFFICIAL!
0 comments...
Create a profile over at gametracker.com and join the clan there! We are OFFICIAL!
Upcoming Events _
Zombie Defense Organization has 0 upcoming events in the next 2 weeks
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