Yep! That radio message tells you what to do next! I will upload a version with the radio fixed (and also fix the constant disembark prompt).
Indeed, getting your submarine damaged cannot directly make you lose the game, it only makes the submarine way slower and harder to maneouver. I wanted to write some kind of submarine destruction (for example, the batteries exploding), but time was running low.
(For now atleast) I won't fix some of the harder bugs (specially the AIs), as I'm thinking of continuing this project further, which will need a lot of code rewrite anyways ;)
