Guns of Gettysburg - PBEM

Has anyone had any trouble with this module, looking for some help getting the game to run as PBEM and to keep the counters hidden. Can anyone walk me through the process? All the log files I produce reveal the blocks when the opponent tries to open it.

I am trying same thing, I think there should be a 'more pronounced ’ visual to owner when their blocks are revealed. I started a game with just Buford’s 2 blocks on map, turned both over and then took CSA side . Only 1 block was hidden.