Jag ramlade på denna sida för något spel, men de verkar vara seriösa i sin research.
https://forum.warthunder.com/index.php? ... -coachman/Comet TYI 433 was initially ordered in 1958 along with several other Comets and four Churchills, which were used mostly for training. In 1962 disaster struck when TYI 433 suffered a massive electrical fire which completely destroyed the turret. At this point the Irish military couldn't acquire spares for the destroyed turreted (and possibly not afford) therefore there was discussion on what to do with the turretless Comet. While there was talk of turning the tank into an APC Capt. Roger McCorley proposed a rather unique idea. He had just completed a course on the PV-1110 recoilless rifle and knew that the back-blast from the gun would give away its position therefore he suggested mounting it the now toothless Comet. The gun was borrowed for testing from the local infantry stocks.
The gun was mounted in 1969 by welding a beam across the open turret while using the tanks turret ring to travers the gun 360 degrees. One minor change had to be made to the tank in that extra plates were added to protect the driver and machine gunner from the back-blast. On trials the tank proved reliable and very potent with the HEAT round being able to pen over 300mm of armour. The only criticism the military had was that the gunner was completely exposed.
Unfortunately the tank would never see service. Despite plans to mount different caliber guns the military shelved the project due to lack of available funds. The gun was returned to the infantry and the hull was turned into a target.
http://www.tanks-encyclopedia.com/cold- ... h-service/
http://www.dfmagazine.ie/site-assets/up ... 83-low.pdf