During the cold war 7 prada classes we're modernised on 1987 as a part of the soviet-American treaty naval joint modernisation
But only 2 we're modernised before the diminishing period where humanity fought di-humans a form of sentient life similar to us but from another planet called kepler-2796b

As of today the remaining prada classes are ssbn-562 "rima" and ssbn-2744 [redacted]

Trim+down = dive
Ag5+ vtol up = periscope
Ag6 + vtol up = dish 1
Ag7 + vtol up = dish 2

Throttle= forward
Yaw= turn
Pitch+roll= gun traverse

I forgot to mention the og creator of gun
@Russianace
I took it from his uboat type 42
Credits to him