Pikemen are not effective in the game, because they switch to their secondary weapons too soon. I wonder, if CA managed to make phalanx, which work perfectly with pikes and switch to swords only in most needed cases in RTW, why couldn't they do the same with pikes in medieval2?

Regarding to Scotland and guns, it is strange why they get no firearms in medieval2 and also in kingdoms expansion. Maybe, firearms, used along with their noble pikemen and highlanders would make them too powerful

Pikes are still a sign of soon death for any light or heavy cavalry.