Making non Magic national commanders more worthwhile

[Shangrila00]

Is it possible to make some national commanders recruitable without a fort? Because nonmage commanders are perfectly useful as they are, it's just that the indy variants are nearly as good without needing the investment of a fort, so all armies get led by swarms of generic indy commanders despite how unthematic it is. Ideally, indy nonmage commanders should be the same as indy mages and troops, recruited for what they offer that nationals don't rather than endlessly spammed.

Maybe make basic national scouts/commanders/priests tied to an event generated site called "successful assimilation" or maybe just make them indy but only recruitable by a single nation like capital recruits. Probably impossible for hardcoded reasons, but hey...