Paratroopers are a good idea but unfortuneately I didn't think of that at the time. The scout and engineer plan worked out alright. Once the scouts crossed the mountains I gave them trucks (I think level 1 Scouts then move faster?). The engineers built roads quick enough the other problem I had was one of the AI+ players rapidly sent a large naval assault to that capital around turn 12. Having the infrastructure in place let me mobilize a Command up that way pretty quickly. The engineers also helped a lot with the heavily forested area to the south where I've now all but eliminated one AI+ opponent and am a good way towards a second.
I could tell I was behind for a few turns when Medium Tank IIs came at me. I still had Light Tanks. Fortuneately I was in great supply so I switched everything to Production Points for just one turn and was able to go to Medium Tank III, Rifle II, and shortly after Mortar III and Machinegun II. The dual war has been too brutal to spend much more on tech since.
But so far I'm definitely holding it together against 6 AI+ Opponents...
