
Originally Posted by
Scalebug
Well, yes, but now you are applying the captain obvious solution, charging the detachment, without realising how in this situation the detachment may well be a fair bit behind the building (and add to that the buildings size, since it "is" the parent unit at the moment), and still (reasonably) safely be able to countercharge someone attacking the building. Say the watchtower has a 6" side, and placed in the middle correctly, so 3" of it is on your opponents half of the table, after the 12" over to the center line, and then the detachments is another 3" behind that, you are already looking at 18" needed, and that is before considering that you are going diagonally (since you likely wanted your main assualt unit going for the tower itself, the shortest route), for another handful of inches... provided it was a straight run without any terrain in the way to start with... It is not as easy as you think it is (and that is assuming you even have some speedy horseys in your force to begin with).
It doesn't matter though, the rules are not gray... they don't become gray just because someone want it to read some way or other.