But it also serves to make things more realistic… and more practical.
A Battleship can fire about 16 miles, correct?
So they can only fire on “coastal” emplacements.
Yet under the BB bombardment rules, a German INF in Paris can be killed by a BB shot fired from the coast of Normandy.
Also, Battleships WERE rare.
A nation can build lots of battelships… as many as they want.
The ONLY time the “sub rule” would come into effect is usign those BB’s in massed concert on an IC containing territory.
You can fire those 100 BB shots into Western, Eastern, Karelia, etc., etc. But against Southern and Germany, you need to be a bit more BALANCED in your tactics. The same is true when attacking Los Angeles or London or Tokyo.
I don;t see a problem with that rule.
And as mentioned, it ONLY becomes an issue if a player is CONSISTENTLY using 5 or more BB’s on a territory with an IC. Otherwise, the sub block is a waste of funds. Notice in my game with Nix that once he split up those BB’s and moved some of them out of range of Germany, the sub buys stopped…