[PvK]

Yes, my suggestion is to take an ordinary commander (an independent foot commander would do - recommend one with a shield and armor (but whatever), and enough leadership for the blocking troops, and place him at the center point of your blocking squad, with the hold hold hold hold hold attack script on him (leaders have more flexibility with scripts than troop groups do), and put the guards on guard commander. If the leader dies, the troops will attack closest, which is fine.

In the move/APs statistic, the first number is the number of good-terrain provinces the unit can travel through per month on the strategic map. The second number is the number of action points for purposes of moving and attacking during combat, and is generally calculated as a base number (generally 10-14 for most humanoid soldiers) minus their encumbrance (generally from armor).