Call me slow, but I just recently discovered of my own accord that before a battle (in "pre-battle" mode) I can literally stack unit after unit right on top of each other - like 10 more more - to get one compressed, super-dense blob of units, like a shield wall on steroids. Often times, tactically I find this more desirable and maneuverable than some huge line of units, particularly for skirmishers and the like.

I just wondered whether this is considered an "exploit" or "cheating" by the community, or if this is something that most people engage in? In particular, how do MP folks feel about this? Is it "anything goes" or are there house rules against the practice?