Board Thread:Suggestions forum/@comment-2001:569:FB16:EE00:E13B:F288:E7C1:EDC9-20180804235303

a Veterancy bonus which increases unit stats by small margin depending on the amount of "Mob kills" they have.

By adding such an bonus you wouldn't be able to field an unmatchable army the moment you aquire a fair bit of coin, but rather the amount of combat which the Soldiers have been in ((Indicated by Mob Kills)) would influence their skill and prowess in combat. 