I'd also tend to say that the bits of cavalry and archers are much more effective in an infantry-heavy army than in any other composition.
Archers can get a few good shots, but they get totally pwnt once in melee.
That is why you don't put them all in the same line when you only have archers like I did. You will get slaughtered all together.
Mass infantry in BM is reliable and good because they are the most cost efficient unit type in game.
Long ranged SF units can easily destroy them as long as the front line holds though. Range 5 units are awesome.
