Were (are) the ROCs the only ones who use (d ) the MD-500D in the ASW configuration? Only finding photos of their blue Eggs. (I know the Swedes used Bell Jetrangers for ASW)
Bell produced a 206 BIII (t least I think it was a BIII) that was called the LASH. Had a trailing MAD unit on LH side of the fuselage and a dingle torpedo. At least one S American country had them and the Swedes.
I seem to remember the Chilean Navy had JetRangers but I think they were just for utility purposes. (Liaison, training, spotting, Antartic support.)
Chilean Navy had a couple of LASH birds.