
It would be neat to include invisibility as is a feature of a vehicle upgrade. It should easy to add and modify since in cheat code called invisible that controlled mob aggression. It would have limitations. To add as a upgrade for a vehicle making it invisible to certain creatures maybe like the shield for cyclops with draining battery life or only work for some creatures. Make it not work for reducing sound. Also make it have limitations. Use previous cheat than modify it should make it easier to add in game and also maybe use look mechanic of base build partially done to give coesmtic look. Some modds in original game already have this. Hope this helps since you are looking for ways to protect yourself from creatures. It will also allow more aggressive leviathon AI. Using this to adjust aggression. For Triton to make it more fun make it not turn on from wheel but maybe in separate area like fire suppression for cyclops adding a unique gameplay for multiplayer having people run around to turn it on and off to save battery