The server down-time and intense lag before that has been thanks to an issue with our Host as I had said. To elaborate, the machine hosting our VDS (Virtual Dedicated Server) which runs CoD4, B3, Teamspeak, IRC etc has been crashing, naturally causing us to go down with it. It appears the issue is down to a mixture of software incompatibilities and hardware failures. I've been told that our machine will be replaced entirely, which should fix both problems. This will of course include some scheduled down-time which I will let everyone know about ahead of time.

More as it happens.