These pictures are from Rubin design beureau and show what is inside thier submarines, now rubin didnt design all submarines its joint between them and malakhit.
Notibly Rubin is the company responcible for designing the Oscar and Typhoon class submarines and also the Kilo class.
This is the inside of a russian oscar II class SSGN this is the control centre or compartment 4 of the submarine.
This is the rest area of the Oscar II SSGN's some have pets on board ive seen cats dogs and birds.
This is a passage way leading from the control centre to the next compartment in side a kilo class SSK
This is the control centre of the kilo class SSK
And here we have the forward torpedo tubes of the Kilo class
This is the fire control panel inside a russian Typhoon SSBN
And saving the best till the very last Id like you to meet the power source behind the typhoon, this one little dustbin sized canister produces 50,000 SHP, and has the energy to power an entire town.
This is the OK650B nuclear reactor from a Typhoon class SSBN