Auxiliaries and Other Ships
Submarine Rescue
MV Swift Rescue SSRV (2008) LOA 279′ / 85 m TDISP unknown

Mystery ship at Changi Naval Base, visible in captures from about 2005 to present. As of 2021/01 a facebook contact kindly let us know this is the Jolly Roger II target barge. This roughly approximates a fast attack craft and replaced the first Jolly Roger after it apparently sunk.
[Image from blog: http://kementah.blogspot.com/2020/05/circuit-breaker-day-37-pix-republic-of.html?m=1]