I notice frequently that my units that have suffered heavy casualties (usually without routing) in a battle are usually the ones that level well. They've usually had substantial contact with the enemy, but have killed no more enemies than my archers in the same battle, nor other identical units involved in the battle that didn't suffer as heavy loses, yet the archers and similar units that haven't taken heavy loses don't seem to level as much ever. So what I'm thinking is perhaps the unit earns experience for all of its kills in the battle, but that amount is then distributed evenly to each man in the unit. This would mean a half-strength unit would have men with double the XP per man in it versus one that survived the same battle completely unscathed. For example, I'm speculating that maybe an armoured swordsmen unit earns XP for all kills made by its members in the battle regardless of whether the particular swordsman responsible for each kill lives or dies. But then if the unit is left at 1/10 strength, the effective XP of each man still alive in the unit may be divided by one-tenth... which means multiplied ten-fold. In other words, each man remaining may be counted as having the experience that was accrued by 10 men in the last battle, due to the depleted nature of the unit. I'm not saying that it should be this way, or that it is or is not a bug, just noting what the trend seems to be in my experience. Has anyone else noticed similar or contrary results? Comments and observations wanted and welcome.