Hi!
They are all within line of sight at the start of the game. Here are a couple of options:
- - Look around after you have destroyed a ship, and keep track of where the remaining ships are.
- Look for smoke above the horizon - where there is smoke there is a ship
- If you can't see any ships or smoke at all, dive to periscope depth and listen through your hydrophones. Once you have the ship's bearing, surface and go at full speed on that bearing until you find a target.
Pablo