Bug in optional rules?

[alaric99x]

Indeed, an element of quite a different order.

Now I wonder, what about holding reinforcements off the map. I've done this a number of times. Enemy units may have bypassed entry hexes and bringing them on would mean isolation and elimination. My reasoning is that a reinforcing column moving along a road, or anywhere else, would have some kind of recon that would (usually) let them know that the road or area they're moving toward is now occupied by the enemy. When entry hexes are already occupied, I choose not to enter reinforcements. Any problem with me doing that?