Thanks Reaper. Soz, I was following the capitalization naming-convention rules for recruits using lower case "cadr" during the Marksman Badge period. I typed it all lower case, but the web page auto-corrected the first letter to a capital "C." I'll try to remember to only use that in the context of in-game play. Cheers.
Below is a quote from the Kilo Company recruit instructional post I got:
As a recruit you will use "cagr" as your in game clan tag. As you earn each one of you Marksman Badge requirements you will capitalize a letter in the clan tag, ie "Cagr" "CAgr"CAGr" "CAGR". This is to let the people in the lobby know if you need help getting the rest of your Marksman Badge requirements or if you are finished with them, but it is your responsibility to let them know if you are finished or not. Please make sure to always wear your clan tag, this is an important part of becoming a CAG Dogg.