Craterus, you don't what you are missing. Loyalty means you end up having to keep an eye on your generals as well as the enemy generals, because if there are too many disloyal generals, then your entire campaign can be ruined as your mighty empire is suddenly ripped in two by civil war. It has happened to me only once on MTW, playing as the italians, all of Germany and Eastern Europe bowed down to me, and i was making a move into the steppes, when Civil War broke out. To make matters worse, the Germans reappeared in the exact same turn. My empire broke in two, and within ten years everything had fallen apart, and i was back at the start. Provinces ruined, empire weakened.

Fraction re-emergance and loyalty make the game much harder than RTW is right now.