There's one base hidden off the map. It's not meant to be part of the map but obviously you can go to it.
So you're telling me that those are not two-sided maps? Lol!
So it is a hidden base that's not really hidden? I'm well aware what the intention of them is supposed to be, since I've been involved with map design for quite some time. There are still limitations like I stated prior, the inability to disable a country entirely and force people onto the other two countries.
Also as CptTrips stated, HT has no desire to have a two sided war and it would require major code changes. How much change or how much money, who knows.
So yes, they are not technically two sided maps, since this thread is about the technical feasibility of it.