Man, M&B AI is so terrible.
Early in a Gondor game I was trying to save a Gondor group who was getting their asses kicked. I went in with the stupid cavalry, who all died after performing a brilliant charge directly into the mass of infantry. I think out of 15 or so of them they got 2 kills, Faramir was with them and managed another 3 kills by himself. I rode around picking them off with my spear and killed 30 or so orcs solo before taking an arrow to the head (I hadn't managed to buy a helmet yet).
The Gondor infantry were still outnumbered two to one, but managed to kill all but three of the orcs before dieing. It was 6 archers vs 3 orc infantry at range, one of them an elite unit with the better armor and a shield and axe but the other two were armed with clubs and had nothing. The archers killed the two weak orcs on approach and put 2 arrows in the other one when he suddenly decided to lower his shield (yay artificial stupidity), then swapped to weapons as the last one got closer (they had plenty of time to shoot him again, one more arrow would have killed the orc for sure, but nooo). They just kinda stood there attempting to swap between bow and sword repeatedly while the orc smashed three of them one by one, taking 2-3 hits per archer. Finally the other three decided to charge it with their swords. They all ran in and hit its shield, breaking it. Then they stopped and stood there while it chopped them all down one by one with its 1h axe, again taking multiple hits each. Right before the last archer died he finally decided to swing his sword again, but it was too late (blocking the axe headed for his skull instead might have helped).
The weird thing is, the orcs didn't capture me - I just popped out of the thing and it said Faramir was defeated in battle. I was able to kite the orc around a bit as I healed up, then go in and finish him off. I inherited the 30 unconscious Gondor troops that the single orc had taken prisoner, which I gave to Minas Tirith for enough resource points to finally buy me a good helmet.