Is there a place I can apply for a team on black ops?

go to a website called gamebattles.com it is the best competitive gaming site in my opinion that many people use. create an account and go to the black ops page. there you will see some tab that should say free agents or register as a free agent. from there other teams may look at you and message you if they want you on their team. or i believe there may even be a page that states teams that are looking for new recruits that you can just message and ask to play with them. its the best tool by far to play competitively i suggest you use it.