Sound of the GunsJackson's Shenandoah Valley Campaign: An On to Richmond Campaign
Units near a battle roll to see if they hear it and how far they may march to join.
How it works
Any unit within four hexes of a battle in progress rolls a d10: one hex on 0-7, two on 0-6, three on 0-5, four (maximum) on 0-4. Movement beyond normal allowance counts as a forced march.
any unit within four hexes would roll a die to simulate wind direction and ability to hear the "sound of the guns".
Download · p. 44
Quote verified