Classic submarine, 2 Unmaned Underwater Vehicle, rendered with post-processing in Unity 2018.f1, standart PBR textures.

All the shaders, materials, collisions are tweaked correctly.

Already cleaned, collapsed

Old-style underwater submarine 3D Max model, along with two small low-poly underwater vehicles without internal details.

The compressed package includes files for 3D Max 2017, 2014, FBX, and Unity package. The textures include diffuse and normal maps, with standard material spheres.

Reflectivity (smoothness) is under the diffuse alpha channel—please check the preview images.

The submarine interior only has detailed operational areas, including a periscope, torpedoes, gauges, switches, instruments, hatches, etc.

The Unity file is version 2018.1.f2, with materials, lighting, post-processing (Post Processing), and simple collisions already configured.

Submarine Terminology​​​​Submarine​​ – General term (also called sub or U-boat historically)14​​Nuclear submarine​​: Nuclear-powered submarine4​​Conventional submarine​​: Diesel-electric submarine4​​Periscope​​ – Optical device for observing surfaces while submerged (attack periscope for targeting, observation periscope for navigation)567​​Torpedo​​ – Underwater projectile weapon (homing torpedo, wire-guided torpedo)89​​Torpedo tube​​: Launch mechanism​​Control Room/Operations Center​​ – Includes:​​Dials/Gauges​​: Dial gauge, depth gauge, pressure indicator1112​​Switches​​: Toggle switch, rocker switch (for controls)1415​​Instruments​​: Sonar, radar, ballast controls​​Hatches/Doors​​ – Cabin door, escape hatch, pressure hull door2122​​Navigation & Propulsion​​​​Ballast tanks​​: For diving/surfacing​​Propeller/Rudder​​: Screw (propeller), stern planes​​Miscellaneous​​​​Sonar​​: Active/Passive sonar​​Snorkel​​: Snorkel mast (for diesel engines)​​AIP​​: Air-Independent Propulsion