Eyecandy: the graphics effects you see which have no bearing on real game behavior. This includes fake cavitation, wavy underwater view, visual damage, sub skins, where do I go from here?
It is a grave mistake to confuse eyecandy for game mechanics. For instance, your sub can have a visually large hole in its side and still submerge, possibly with a small hull damage percentage!
A target can have no visible damage and sink like a stone, or lots of it and never sink at all. A real underwater view is like looking through air, there is normally no image movement as rendered in the game. We have lots of graphical curiosities, none of which have any impact on gameplay at all.
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