koukaldr wrote:
Has anyone ever brought up the idea of allowing players to destroy their own infrastructure (barracks, air fields, industrial complexes, etc.) when in retreat?...
Yes, of course, but:
Even an industrial complex level 1 is not comparable with just a single building / a small factory, but already corresponds to at least one industrial area or whole district with many different production and processing factories, and of course at higher levels with a correspondingly larger expansion.
To destroy all "buildings" in an enemy province, either several strategic bombers over a longer time or equal a few dozen rockets are required.
So, if someone really want to be able to free an own province completely from buildings at the push of a button, he would at least have to invest the equivalent for the explosive power of the necessary bombs or warheads (the proportionally resources).
But if one still have the resources needed to do so, it would be unwise to apply them to destroy own buildings the enemy probably do not need anyway (because: how else has he managed it to threaten / conquer that province?). Better to use this resources for wapons against the enemy units instead.
That means, if an enemy is already strong enough that he can invade provinces with "good" buildings, it's maybe more harm for yourself than for your enemy when you're wasting ressources for blasting your own buildings.
So it's actually a brilliant protection mechanism for Noobs, that they can not scrap their own provinces. 

