Well, it had to happen didn't it? After all the great and exciting news on GoW lately, there was always going to be a setback. Sadly, it's in the multiplayer department, and sadly, you won't be playing tactically with any of your Xbox Live friends.
Unfortunately for the guys at Epic and us gamers, Microsoft have a policy that states that all ranked matches must be based on skill. Therefore, playing ranked matches with your clan or friends is down to chance (or pretty much impossible, since getting the eight people you want in the same room would take some doing), much unlike the system of Halo 2 that everyone raves about.