Co-Opp is currently a community of gamers and ex-gamers who have an affiliation with clan ohnd, mcsA or mcOhnD! clan ohnd and mcsA are primarily tied to Counter Strike: Source, whilst mcOhnD! is an amalgamation of both clans for other games such as Team Fortress 2 and Call of Duty 4.

First came clan ohnd and mcsA...

clan ohnd

clan ohnd began with 6 members under the name [VIP] (Very Important People). After receiving many requests to join [VIP] a decision was made to start a ‘real’ clan under the tag of ohnd. This was the beginning and ohnd then went ‘official’ by joining the GameArena Counter Strike: Source ladder in March of 2005.
    
clan ohnd then began recruiting people close to the members from places such as work and high school creating an even tighter community on and off the internet. With ohnd growing they were bound to make friends, and thus a relationship with Clan Love, or |||, developed and they helped clan ohnd with the GameArena Ladder and how to run wars. The relationship ended when Clan Love disbanded, a few members joining clan ohnd and others going their own way. It is these people that have created the foundation of clan ohnd and since clan ohnd has recruited many, lost a few, but has never lost that close community feel that was the catalyst behind it all.

mcsA

sA or Sing Alongs did this and that. sA later merged with casual Counter Strike: Source Clan MCD (May Cause Drowsiness) creating what is now known as mcsA (May Cause Sing Alongs). mcsA then merged with another casual Counter Strike: Source TMP creating the clan it is known for today. Much like clan ohnd mcsA have recruited many and lost hardly any, they only have long-time inactive players.

mcsA is known for its unorthodox behaviour on CS:s never failing to provide amusement or frustration for those in the server with endless mass suicides, spawn camps, voice sing-along’s and relentless spam of silly acronyms. They have over time formed a close community amongst themselves and with clan ohnd as both clans stack GameArena Popular servers.

Then came Co-Opp...

It was this close bond that led to the formation of Co-Opp, a decision made by mcsA leader Fr00ty T00ty and clan ohnd d3vian7. The decision involved not a merger between the two clans, but a sharing of resources and a larger, closer community which optimized the use of services for both clans.

Since then clan ohnd and mcsA have merged their individual websites and forums to Co-Opp.net and share a ventrilo and Counter-Strike: Source server, yet still remain individual clans.

Then mcOhnD!...

With the release of Team Fortress 2 in late 2007 another party in the Co-Opp community was formed under the name of mcOhnD! (mc(sA) + OhnD!). A title decided in a group meeting between leaders and community. mcOhnD! formed a TF2 team soon after from members of clan ohnd and mcsA who wanted to play casually and on the GameArena ladder. Soon after the TF2 team was established mcOhnD! developed a Call of Duty 4 team with the release of that game. Since then, mcOhnD! has recruited non-ohnd or mcsA players into the community.

And thus, we have the Co-Opp Community.