A full 1:1 scale Yasen-class nuclear submarine. All of my submarines are updated constantly, so expect updates to the project.
I built this submarine alone, no help from anyone else, and it took me around 1 1/2 days to complete from nothing to fully furnished interior.

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 Yasen-class provided by Wikipedia:

Name:	Severodvinsk
Builders:	SevMash , designer Malahit Lazurit Rubin
Operators:	Russian Navy
Preceded by:	Akula class
Cost:	Equivalent of US$1.6 billion[1]
Building:	5
Planned:	12[2][3] (7 on order)[4]
Completed:	1 (Severodvinsk)
Active:	1[5]
General characteristics
Type:	Attack submarine
Displacement:	Surfaced: 7,700–8,600 tons Submerged: 13,800 tons [6]
Length:	120 m (390 ft)[7]
Beam:	15 m (49 ft)[7]
Propulsion:	1 x KPM type pressurized water reactor
Speed:	Surfaced: 20 kn (37 km/h; 23 mph) Submerged (silent): 28 kn (52 km/h; 32 mph) Submerged (max): 35 kn (65 km/h; 40 mph)[8]
Range:	unlimited except by food supplies
Test depth:	600 m (2,000 ft)
Complement:	90 (32 officers)
Sensors and processing systems:	Rim Hat ESM/ECM Snoop Pair Surface Search Radar
Armament:	8 x VLS equipped silos for either: 32 (8 x 4) with Oniks[9][10] or 40 (8 x 5) with Kalibr-PL anti-ship, anti-submarine and land attack submarine launched weapon.[9] Kh-101 cruise missiles.[11] 10 × torpedo tubes (8x650mm and 2x533mm).