it really depends on the clan. its a case to case type of thing where some clans may look for stats and availability while others will be accepting for fewer or no requirements. so just apply for various clans and im sure one will pick you up. i' ve been having trouble finding one myself but im optimistic.

Hey guys, here's a thread from a discussion i made a while ago, hope it helps

http://community.callofduty.com/message/413846154#413846154