1. "CA" is the cyrillic abbreviation for Sovetskaya Armiya, which appeared on Soviet enlisted shoulderboards (with the exception of sergeants major) throughout the 80s.
2. Yes, there is a blue version of the kill marker (you can see some examples in the upper left hand corner below).
3. Breached minefields and obstacles appear as in the screenshot below. The same breached graphic shows for both red and blue minefields/obstacles, of course, but that is probably OK.
4. I will pull together the markers I'm using and upload them soon -- I am still playing with some things (like centering the markers over the hex).
