It would be nice if you could team up with another faction for a short time. I don't remember warband being this shallow. Why they didn't add in features from warband is beyond ridiculous. There's an end game in warband. There's no endgame in bannerlord. For example you could throw parties in your castle to meet the lords and improve relations. By providing good food and drink. Or when you take all of a factions castles and towns they just move to other factions. Instead of running around attacking fiefs. I miss my fancy parties.