I don't know how long it would take to get word from the battle area to the artillery park, but I am going to assume it's a little over an hour. (That is at least a good framework for in game resolution.) So here goes.
OBA orders may be changed in 2 ways,
Normal Channels and
Field Orders. Any changes to OBA firing orders are recorded in the Bombardment phase.
- Normal Channels
- A player may alter OBA firing orders in any way, if it has been at least 4 turns since the last Normal Channels change. These orders are applied 6 turns after they are recorded.
- Field Orders
- If a player wishes to modify or add to the OBA firing orders, those changes must be written out. There may be up to 4 consecutive turns of plotting. Beginning the turn after the new plots are recorded, roll on die for each plot change. on a 1 or less the new plot takes effect. If the new plot does not take effect, subtract 1 from the die roll for next turn. Continue rolling until the new plot takes effect, subtracting and additional one, up to a maximum of -4, until the new plot takes effect.
- If there are multiple changes for a given battery, roll for both changes as above. If multiple changes are to take effect in the same turn, give each order an equal chance and randomly choose between them to determine which will be in effect for that turn. 1-3 the older change is applied, 4-6 the newer change is applied. If the old change is applied, switch to the newer plot on the next turn. Any Normal Channels changes still applicable will go into effect when Field Orders have been fulfilled. Note: If Normal Channels and Field Orders changes go into effect on the same turn, there is still a randomized choice between them. Normal Channels changes are considered the older orders in this case.
