8/24/12 - Community Playdate (Forge Gems):
https://forums.halo.xbox.com/yaf_postst105853_Community-Playdate-8-24--Forge-Gems.aspx
7/20/12 - Community Playdate (Defiant Achievements):
https://forums.halo.xbox.com/yaf_postsm1160007_Defiant-Achievements-Playdate--7-20.aspx
5/18/12 - Community Playdate (ForgeHub maps):
https://forums.halo.xbox.com//yaf_postst83291_Community-Playdate-5-18--ForgeHub-Maps.aspx
https://forums.halo.xbox.com/yaf_postst105853_Community-Playdate-8-24--Forge-Gems.aspx
7/20/12 - Community Playdate (Defiant Achievements):
https://forums.halo.xbox.com/yaf_postsm1160007_Defiant-Achievements-Playdate--7-20.aspx
5/18/12 - Community Playdate (ForgeHub maps):
https://forums.halo.xbox.com//yaf_postst83291_Community-Playdate-5-18--ForgeHub-Maps.aspx