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Bull Shark GS-4

Built around its spinal railgun/airlock system, the GS-4 features tough armor and decent speed. Earning its nickname during border patrol and anti-piracy actions within the Coalition, most GS-4s now sit derelict as cheaper and more reliable designs take their place.

[Specifications]

Tier 2, Attack
54x14m
17500mk
5-9 crew

3x light hardpoints (1x coilgun)
1x flak cannon
1x dual railgun
1x depth charge tube

13km/h vertical top speed
22km/h horizontal top speed

[Features]

Bilge ducts direct to ballast, with dedicated bilge pump in medbay
Gunnery and fabrication located in amidships
Brig for prisoners & undesirables; equipped with purge flood system
Fully functional bunk beds
Various interactable crates and shelves for storage
Dual swappable searchlights
Combined airlock and spinal mounted dual railgun
Shell pieces have health buffed by 20%

The tube on the front of the submarine serves as the primary and only egress, as well as the barrel of the sonar-controlled dual railgun. The room just behind the railgun serves as its gunnery. This room contains a motion sensor for the barrel (so you don't unintentionally shoot any crew exiting the sub) as well as a locker for storing shells, a sonar terminal, and a loading tube. The railgun can load up to two shells, both of which are fired in quick successive order. While limited in use, this means you can combine the effects of two shells into one rapid strike. While canister shells CAN be loaded, it is not recommended as they may (definitely) cause damage to the tube walls.

[Changelog]

05/23/23 - Minor update: I've found a few cases of the railgun hitting the tube walls, especially when moving fast at 7:30. Fixed hull and shell pieces to hopefully reduce this happening. I do still recommend not moving too fast when firing if you can help it. In addition, the medfab has been refurnished and looks finished. Thanks goes to @Jack Kellar in the comments for bringing the railgun issues to my attention.

06/15/23 - Minor update & major fix: Depth charge tube has been adjusted to no longer hit the hull. In addition, a hidden hole by the bilge pump has been closed. Lights and hull parts have been modified slightly to compensate for the 1.20.1 patch. Finally, motion sensors by most hatches have been adjusted, with the intention that the hatches will close even when these smaller rooms are occupied.

[Disclaimer]

This sub is built primarily for multiplayer, and while bots CAN operate on it, they may find difficulty using its custom systems. Bots tend to get really stuck on the custom airlock, due to its timed cycle.