Sorry I haven't been around for a while. I really do appreciate being called a "font of knowledge" though, especially if it involves being compared to our Senior Chaplain.

As far as I know, the squad badges apply to all companies, though the Scout company would often not have all 10 squads and so might not be using some of the badges at any given time. Since they don't have knee pads, it's kind of a moot point. I have considered putting the squad badges on the right shoulder pad, but it didn't seem quite right.

I've never found a definitive Company marking for the 10th Company, so I've left mine blank. The best I've found are the pictures in the 3rd Edition Codex, both the inside of the front cover and page 13, on which you can see the edge of what appears to be a black circle on the Scouts' right shoulder. This certainly could be a black skull. I'm a little hesitant to go with this without proof though, as the black skull is also on the right shoulder of Honor Guard. BW, do you know where you saw that the 10th Company symbol is a black skull?