US Naval Historical Center Photo
5"/38 guns - 5 of them, 2 forward and 3 aft
20mm Oerlikon guns - two in the tubs forward of the bridge
40mm Bofors twins - one each in the raised tubs at the waist (use the smaller of the waist tubs in the Tom's set.
Mk51 directors for the 40mm Bofors - after stacks
Searchlights moved to the forward stacks
20mm Oerlikons - two on each side of the the main deck, aft of the 40mm support structure (behind the curved tub/spray shield
40mm Bofors twin - in raised tub on after deckhouse between the 5-inch guns. Its Mk51 director is located immediately behind it.
Depth charge throwers - three per side aft of the deck-mounted 20mms
Two banks of 5 torpedo tubes - aft of each stack
20mm Oerlikon - 3 in heart-shaped tub on fantail
2x roll-off depth charge racks on the fantail
The best documentation on the Fletcher is the Floating Drydock's Fletcher Class Planbook. Unfortunately it is out of print