one as moors with their Über-peasant crossbowmen and camel gunners (huge range) as well as fast javelin cav (really devastating if used correctly), scots (for great pikes which can hold their ground in melee too), and poland (some of the best knights and decent horse archers)[/QUOTE]


While I haven't played multi, from singleplayer, bows/xbows are better than muskets when pitted against each other
Nope they're not. Guess again

You can also go heavy on horse archers which are mobile and with cantabrian circle will not fear muskets much.
HAs in canta do extremely little damage. Its not quite normal for people to not even use it.

Another thing with muskets is that they need to reform majorly to always be perpendicular to their target. Have a mobile target run around and take them out while they keep reforming ;)
Erm ye...well you do realise we're not talknig about all musket armies lol. A half decent player will protect his muskets with some cavalry. So the muskets can concentrate on firing dead ahead.

I'd suggest one teammate being England with trebuchets (very long range and good accuracy + devastating agaisnt troops)
Another interesting feature of trebuchets is they're banned in almost every battle I don't want to go into it because it'll just open up a art debate topic. But they're banned for a reason.

one as moors with their Über-peasant crossbowmen
Do this in high era by all means. But the peasants wouldnt get 5 volleys off in a shoot out vs muskets before being dead.

Sorry for maybe coming off a little too harsh there. But I think this just highlights how different mp and sp are. I would encourage you to get into multiplayer, its great fun.