When a map us next in rotation. Have the map pre-set with sporadic bases distributed among the three chess pieces with enemy bases.
I've often wanted a "Steal the Bacon" map where:
1) All bases are randomly distributed among the three countries, so good luck consolidating, or...
2) Three uncapturable bases (one for each country) at the center and/or the edges are what we start with (could even just be CVs/Ports)...
And the race is on.
Not only do you have to actually capture stuff to build up but then you have to fight to take occupied territory.
You might even start as Early War and tie base captures to better equipment.
Could be a hoot.