I really want to love multiplayer since I love single player but I can't, its too damn bad, flawed and frustrating and there are better alternative.
Here are some of my issues:
Skirmish:
-I play with randoms vs. a clan every third game, so random guys of various skill levels with no communication vs a clan with voice chat and hand picked higher skilled players, fun? I think not. There is still not any group matchmaking, its basically get a clan or suffer the consequences.
-Combat of pro players basically comes down to feigning swings and in this game your character looks like he has a stroke mid swing, it does not look immersive or natural at all, it looks silly and stiff.
-There is no strategy except for sticking together, no master plan, no notable advantageous map positions worth fighting for, nothing.
-You can ambush people by using third person around corners so basically you see them while your character is looking into a wall 1 cm in front of him, immersive? Its just bad
Captain:
-Poor map design and size. There are only one or two maps big and open enough that make cavalry and especially archers semi useful.
-Poor unit balance and poor ai. Archers are too easily manipulated and all on various levels of sucking apart from Khuzait and Empire thanks to their armor and melee weapons. 1 player with a cav will make your archers keep switching from melee to bow making them useless while the rest of your team die.
-Strategy. Winning strategy is basically stay together, be aggressive with a mix of shield and two handed units, this "strategy" can only be beaten by a faction of better two handed and shield units. There is no benefit to flanking since the enemy can just push either direction together and win it that way.
I could go on but don't see the reason, I don't see the reason if you really want to play medieval melee games to not play something else like Mordhau or perhaps Chivalry 2. Only MP unique thing this game has to offer vs. other games is captain mode and having units under your command but the maps are bad, ai stupid and no real strategy involved.
I do love single player though so there is that.