Operating bases
Operating bases are locations in which resistance members can construct buildings and fortifications, store resources, operate garages, repair and refuel vehicles, and more. If enough resources are stored, an operating base may be used as a respawn location.
There are two types of operating bases, as described below.
Forward Operating Bases
FOBs can be established by resistance members using the entrenchment tool, via the placement menu. They need to be placed at a sufficient distance from enemy-controlled facilities, towns and other points of interest. You can use FOB Placement map tool to plan the location in advance.
FOBs are field bases and as such, offer fewer capabilities than military bases, and their armory and equipment assortment is limited to resistance assets. However, they can be established very early, before the resistance is strong enough to overtake a military base, and/or may be placed in very advantageous locations.
Military bases
Military bases are existing locations in the world, controlled by the enemy. After they are taken over, they can be used as operating bases.
They are somewhat complementary to FOBs, as they offer more possibilities at the cost of their fixed placement. Fighters will find here regular army equipment of the allied forces and more construction options.