The OSB Oceania is a vehicle in Just Cause 5 (fan fiction spin-off by Anonymous230385).
Description[]
No in-game description.
According to the picture, its shape resembles a WW2 submarine. These were more pointy than round, because unlike modern submarines, they were designed to travel faster on the surface than under water.
Locations[]
Samuel Rodriguez fights the leader of Oceania aboard this submarine in mission 25.