I played it before when it was just a community based Insurgency mod. I think there were only 1 or 2 servers that were running it. I was also lucky enough to snag one of the first Alpha test keys. It's come a long way and the Beta release a couple weeks ago offered some much needed fixes. The DOI server list continues to grow each week. I however really dislike how NWI has seemed to have just stopped working on and updating Insurgency. It appears they are putting all their effort into DOI.
As far as us getting a DOI server going, right now it would be no different than our existing Insurgency servers. We first have to put together some folks that can help manage and run the servers. Narug0 has been out of commission for a few weeks with a busted PC. He was the only one with the technical knowledge to configure and maintain the servers. With his absence, we've come to a bit of a stand still. I'm continuing to try and learn more about both Source Engine and Source Mod as I've had time. I just haven't had much time lately.
If we could improve our support and technical personnel, it would be cool to maintain our Insurgency #1 CO-OP server. Maybe consider dropping our our # 2 server ( to better focus on supporting and promoting server #1 ) and switch our # 3 PVP server to a DOI PVP server. We would then have coverage on both game modes of CO-OP and PVP as well as both game versions of Insurgency and Day of Infamy - which would give us a solid presence across the whole platform.