Add a delay of 10 minutes after every sink to be able to manually sink your own ship in order to avoid the abuse of this mechanic to teleport near an enemy.
Edit: I mean that we shouldn't be able to scuttling over and over in order to "teleport" us near an enemy / fort / wathever.
So, if our ship has been sunk recently, we shouldn't be able to activate the option during some minuts.
