I believe you are referring to their status in the clan. If you look at a clan's members, they all have a number based on their rank. It's the same in wars, except the number is their rank in the war, not in the clan.
No problem. There are many great guides in the Wars section of the Forum. You might find them helpful
apparently it is their rank in-clan and you attack the people who have high plunder and dont attack people who are knocked out