Actually, I've always wished for such a thing, even in NW. Having Corporal insignia, when you are a Corporal in your regiment is something awesome to represent, makes those NCOs more visible when they take command, or when people are looking at them. It makes it great for roleplay, regimental and many other purposes. I can see it happen, unless there is a way to choose one of those ranks on the screen, compared to being able to add it yourself. The only problem I have with this is how players might actually all take some really high Sergeant Major insignia when playing around in servers, which will look genuinely terrible having 50 people with sergeant insignias or something. But on regimental battles that would be a great addition I find.