A polar dark fog farm that combines @defaultnano's sorters and @alphazulu489er's corralled ILS towers, but the reverse direction of @japaroads' version: It is enclosed at the polar cap and reaches down to 61 degrees latitude.
Defends with laser turrets, jammer towers, plasma cannons, implosion cannons, and gauss turrets, with a ring of missile launchers inside.
Towers are set to retrieve the highest ammo level for each emplacement, but the factory will make it's own ammo after there are enough materials gathered. Proliferates ammo with level 3 proliferator once crafted, before being loaded (doesn't proliferate the items going into ammo construction). Also requires strange annihilation fuel rods though will probably work with antimatter rods, if you want to change the inputs.
Requires maximum slope on belts and a LOT of logistics bots to transfer between the gathering storage and the ILSes (3780) and almost 10,000 level 3 belts.
No jams as it doesn't work like a sushi belt thanks to @defaultnano's great design.
Holds it's own against 9 level 30 dark fog bases, tested with weapon levels at 20.