I'm not understanding, can you explain?
From mid 2012 to late 2013/early 2014 There were no factories dispersed over the map, but a huge centralized strat complex for each country.

(City in the center(island), the five factories can be seen as squares near the edges.)
On large maps (which are not in rotation anmyore), this complex evacuated to a remote rear area if one of the nearby bases was captured by the enemy. Unfortunately this relocation mechanism was easy to manipulate.