Is it possible in COD:BlackOps PS3 identify who is the "host"?

Solution 1:

The (now defunct) COD4 Board forums gave a few hints on determining your host:

  1. If you are the first person to enter an empty lobby, you are the host.
  2. Right when the match finishes loading and the countdown begins, press select and check the connections. If you have a 4 bar connection and everyone has red bars, and a little green plug icon next to their rank, that means they are connecting to you and you are the host. Now if only 2 or 3 of them have the little plug thing, you aren't the host.
  3. If you are the only person who has a 4 bar connection the whole match, you are the host.

Other posts also said that it's basically the person with the most (4 or 5) bars in their connection.

Solution 2:

Set your clan tag to %. If you are host, the % will stay as %. If you are not host it will change to a period. Easiest way