A full 1:1 scale Ohio-class nuclear submarine. I constantly update my submarines and the Ohio-class is my favorite build so far.
I built this submarine alone, no help from anyone else, and it took me around 2 days to complete from nothing to fully furnished interior.

11-24-16: I added a download link, enjoy!
-Please give credit to SirFuzzhead (me) if this is used in any sort of way, map, video, or whatever else.

Some specifications about the Ohio-class provided by Wikipedia:

Ohio class
Builders:	General Dynamics Electric Boat[1]
Operators:	United States Navy[1]
Preceded by:	Benjamin Franklin class
Succeeded by:	Columbia class[2]
Built:	1976–1997
In commission:	1981–present
Planned:	24
Completed:	18
Cancelled:	6
Active:	18
General characteristics
Type:	SSBN/SSGN (hull design SCB-304)[3]
Displacement:	16,764 tonnes (16,499 long tons) surfaced[1][4] 18,750 tonnes (18,450 long tons) submerged[1]
Length:	560 ft (170 m)[1]
Beam:	42 ft (13 m)[1]
Draft:	35.5 ft (10.8 m) maximum[5]
Propulsion:	1× S8G PWR nuclear reactor[1] 2× geared turbines; 60,000 shp (45 MW)[1] Fairbanks Morse auxiliary diesel[5] 1× 325 hp (242 kW) auxiliary motor 1 shaft with seven-bladed screw[5]
Speed:	12 knots (22 km/h; 14 mph) surfaced[1] 20 knots (37 km/h; 23 mph) submerged (official)[1] 25 knots (46 km/h; 29 mph) submerged (reported)[1]
Range:	Limited only by food supplies
Test depth:	+800 ft (240 m)
Complement:	15 officers, 140 enlisted[1][4]
Sensors and processing systems:	BQQ-6 passive bow-mounted array[1](which includes BQS-13 fire control array)[6] BQR-19 navigation[1] TB-16[1] or BQR-23 towed array[6] BQR-25 conformal array[6]
Armament:	4 × 21 in (53 cm) Mark 48 torpedo tubes(Forward Compartment 4th level)
General characteristics SSBN-726 to SSBN-733 from construction to refueling
Armament:	24 × Trident I C4 SLBM with up to 8 MIRVed 100 ktTNT W76 nuclear warheads each, range 4,000 nmi (7,400 km; 4,600 mi)