GROUPS

http://steamcommunity.com/groups/CovenantElite
tag : CE
http://steamcommunity.com/groups/452312221
tag : ODST
http://steamcommunity.com/groups/theunscodst
tag : odst
http://steamcommunity.com/groups/combinednations
tag : CN
http://steamcommunity.com/groups/hygyuuigg
tag : GR
http://steamcommunity.com/groups/HaloMaps
tag : UNSC Army
http://steamcommunity.com/groups/greencheek
tag : halo ce
http://steamcommunity.com/groups/nohackes
tag : halo 3
http://steamcommunity.com/groups/medusa-mda
tag : MEDUSA
http://steamcommunity.com/groups/unrealwarfare
tag : uw