If HT is going to impliment the the additional capture paths thingy, then perhaps all the ports could be setup up to provide additional paths in. ie
A1<->A2<->A4
^
|
P5
whatever and ever. CVs/ports could provide another jumping off point, fights still have to be focused somewhat, and the lesser number country still has avenues to attack while the horde is focused elsewhere. I'm not a big fan of offering milkrun boulevards all over the map, but with the current numbers situations, 1 or 2 bases at a time isn't going to work.