I think you're shooting yourself in the foot by imposing so many strict conditions. I mean, let's suppose there are 50,000 people who regularly play CoD4 online. Of that 50,000, I reckon a mere 3000 are going to be asian. Roughly half of them are going to have headsets and half again are going to be level 20 or higher. Some are likely to already belong to a clan, others will have no interest in joining a clan. That leaves only a few hundred people who fulfill your criteria. What's more, the whole "audition" concept is just going to dissuade even more people. You'll be lucky to get 50 guys to join your clan, and that's only if you post on nearly every asian society or club website and forum on the internet. You're better off just saying "Anyone can join but it's primarily intended for asians" that way you'll generate some interest without sounding racist.