I don't know if this has already been said, I could not find anything about it anywhere, and I hope this is the right place to point this out. I found this weird bug in the training mission, where the screen goes crazy if I go underwater when the health is not full. The majority of the screen freezes, and I can only see a smaller screen in the bottom left corner in which I can continue to play. If I return on surface, everything turn back ok, same thing if I cure full health (even underwater). I noticed this in the training mission only, in "Tears of St Lucia", for example, everything goes perfectly underwater even if damaged.