Editing flags

[Radscorpion]

Does anyone know how to switch battle flags between factions? I don't need to re-paint any flags, just switch them around.

(I'm using a mod that lets me play as Belgium and Serbia, but their naval battle flags (the ones floating above the ships) are wrong. Serbia has the Belgium flag and vice versa.
So that's what i'd like to change)

I'd really appreciate any help.

[Radscorpion]

Also, I did check out husserlTW's tutorial, but I didn't learn much from it unfortunately... As I said, I don't want to re-paint or add new flags, just switch around existing ones.