The ships in-game are the USS Tiny, the USS Beast, (both at Wright Isles) and the USS Tiny Two. The Tiny Two is between Snowstone and Krakabloa, so that's also a way to discover Snowstone Island. To get to the Tiny Two, spawn at the Bandit Final Approach and go halfway over the spikes in the waters. Then, take a left and go directly north, and you'll find the Tiny Two and it's destroyers.