Bit of a strange bug I encountered earlier, Im not sure if this is a Third Age bug or maybe even just a Kingdoms one, by the way I have Baron's sub mod compilation installed, nothing else though.

Basically a Mordor army attacked my Silvan Elf garrison at Dol Guldor (or Amon Lanc as it gets renamed to), an enemy siege tower assaulted the walls and started duking it out with the Elven Shieldbearers on top, the other side of the gatehouse my infantry had just deflected an enemy ladder attack, so I ordered the two units to move through the gatehouse and attack the siege tower force in the back.

However the second the two units started to fight the enemy unit (it was Orc Bodyguards) they both instantly routed, still were full strength, had good morale and were not tired or anything like that, it was annoying because as the units (about 240 men total) started to retreat through the gatehouse at ground level they entered a heavy melee and were instantly slaughtered.

Im not asking for a fix or anything like that, but has anybody else encountered this? It may even be a gameplay feature for all I know, but it was very strange and its never happened to me before.