@Mvk_
yeah, I might have overdone it with the wings but it seemed like the only thing that fit with the design I was going for. I also wanted to make sure you felt rewarded when ranking up, I felt that everything above silver had to have something unique to them while also feeling somewhat similar hence they naturally kinda just all got wings (early designs had no wings at all).
As for the unit idea, I actually tried something like that. Each tier was actually a unit and as you ranked up the higher tier unit you got with 5 being an ACU but ultimately my subpar graphic skills weren't enough and I just couldn't make it work and it honestly did not look good at all. Plus there is the small issue of people complaining that their faction isn't a higher tier.