I'm relatively new to Medieval II, and had a question about wall-top fighting. I noticed that when my troops attack their troops on the walls, usually only a couple guys are fighting where the two units come together. I also discovered that if I give my troops the order to march to the other side, through the troops, or even just order them to march into the middle of the enemy uint, lots more guys will run to where the two units come together, then I can click attack and a lot more guys are fighting. Is this an effective tactic?

It seems that having more guys at the front should be better, especially if they outnumber the enemy. However, it seems like shortly after I give this order, the unit starts to do worse. I've only done it a couple times, and it has been against big groups of mixed enemy soldiers on the walls. I'm wondering if a couple of different things may have adversely affected my tactic. The first is the possibility that while my soldiers were running, the enemy got a "free hit" on them, and that may have started a domino effect that hurt my unit. The other is that using this tactic simply accelerates the results. If they have better infantry, they'll win.

Any thoughts?