I've been turning a submarine simulator into a tactical shooter

For the last 1.2 years myself and a dozen volunteers have been turning the submarine game barotrauma into a tactical horde shooter against an alien hive. base upgrading •22 Unique enemies, each with interesting mechanics •Highly detailed and immersive maps •Working howitzers •Day/Night cycle •Last stand and ticket system •Hive spreading and terraforming system •Fobs •Dynamic ambiance system •Squad system •Gear buying/exp system •Util features so stuff like fire actually works •Gas system • Infection system, you'll join the hive team when fully infected • Tarkov style attachments and weapons system • Streamlined rounds •Class progression and other progression systems • Trench building and shell craters •Dozens of other small features •ziplines and trains • linear campaign • hidden deep style caving mode • cutscenes • Complex AI ally system with features like patrols, squads, injured dragging etc • event system with events lik