For those unaware, these were a one ton, single shot missile system that fired a ten point damage missile with a fifteen hex range, which appeared in the scenario pack "Unbound" in the early days of the Clan Invasion storyline.
I was always quite fond of them, however as the timeline went on, they managed to disappear, even with the appearance of the rest of the gadgets from unbound popping up in Tactical Operations and Interstellar Operations. It'd be nice if we could see them again one day.