𝔼𝕩𝕦𝕤𝕚𝕒

Did a bit of digging, this is “Intelligence Ship Kilden” not a converted or re-activated Kilden Class destroyer (none of which were named Kilden, and all were deactivated by 1991). The ship is converted from a Hydrographic survey vessel (1970), outfitted with 16 “Strela” SAM missiles. Given her 30 day endurance and less than 10k nautical miles range, she was not out here alone - and suspiciously there’s been a lot of underwater stuff broken in the recent years - the kind of thing a hydrographic ship would be great at locating.

She’s powered by 4 diesel generators feeding 2 1800hp engines, so “thick black smoke coming from the funnel” means she probably blew an engine, and damaged the other for the moment, with no power to her screws (resulting in the Loss of Control signal) and as a result was “sacrificial lamb’d” by her surface complement in case of discovery. If they get the engine(s) back up and running, she will probably be rejoined by a conveniently close escort of some kind “to ensure she makes it back to port safely”.

Black Sea Fleet Russian website