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WARNING: This submarine is not for beginners. Your survival in the deadly waters of Europa will depend on staying undetected. To aid in this, you have flares and decoys—plentiful, but not endless. The hull is coated with an experimental paint that makes detection by hostiles more difficult. When combined with stealth mode, the submarine becomes nearly invisible beyond 25 meters. What can't be seen, can't be killed.

If detected, your arsenal is very limited—powerful but lacking versatility. For marine creatures, the periscope can switch between a bottom-mounted electrical discharge coil or a top-mounted Experimental Sound Device (ESD).
The ESD has a 2-second delay before firing for safety reasons, allowing time to protect the submarine’s sensors. After activation, the trigger must be held for 4 seconds in total to ensure proper discharge and to avoid impairing future uses.

In the event of hostile submarines, you have unguided torpedoes and depth charges. Given your significant disadvantage in conventional sub-to-sub combat, it's strongly recommended to avoid direct confrontations. Instead, use your advanced sensors to set up ambushes and strike from a position of advantage.

Good luck captain, and remember:
Be the last word they never hear. Become a Whisper, and let your silence be your deadliest weapon.