So what does this score supposed to do even? Will it do anything but display how many knights you have under your command? If that is the case, this is just meaningless.
Also what do you mean marshal bonus? If you are giving bonuses to marshals based on the size of his army, then no. It will strengthen big realms too much. Small realms already don't have a chance to deal with big realms. You don't want to crush them. Also, with the coming new war implementations, you want more smaller armies not one giant army so I doubt it would work well with the coming changes.
