Quote Originally Posted by sapi
That may be so, but I find it immensely frustrating not to be able to set up defences where I want, and operate from the best location possible, simply because the game decides that that's not where my HQ is and thus I wouldn't have 'supply lines'. Never mind that I had the supply drop ability
Well I think all defensive buildings you can build anywhere as long as you control the area.
Base buildings however require the HQ nearby.