an old expansion for classic called for something similar. but it was 2 turns off the board a third turn on the board. even came with an index card sized tracker to keep track of how long it’s been off the board. You had to keep track of movements you made with each sub with a piece of paper. And had to make detection rolls to find them if they are off the board. If they were on the board no detection roll was needed. At anytime a player can call into question that the subs are where they are suppose to be and one allied player (of the axis choosing) and the other axis player. work together to track the subs movements and judge to make sure the rules aren’t broken. If the subs controller cheats he loses the sub. if either side gives away where a hidden sub is hiding the rulebreaker losing 12 ipcs worth of units and the opponents choosing which units. The expansion came with little white stickers so you could number the sea zones in classic. Ahead of it’s time in that respect. Normally the axis picked the russian player and would show them every round what was going on with there subs to avoid confussion later. It was alittle fun to be russia and know where everyone’s sub were and watch as everyone tried to find them. made the game light hearted. It gave the german player and russian player something they could look at each other and laugh about as they were trying to kill each other.
