Interesting ideas, both the markers and the storage.
Reminds me I need to transfer all those old home videos over to CD or DVD, and then I can use all those cases I have. Since my troops are 1/285th, I was looking at some 6mm metal rings from the jewelry making section of the local craft store. Paint some red for Heavy Wound, some yellow for Light Wound and some left bare metal or painted black for KIA. But Overwatch still had me trying to sort out something, as does suppressed. This gives me some ideas.