Tsar Kunikov sunk by Ukraine USVs today (Patreon)

Tsar Kunikov 158 Ropucha class LSTM for the Russian Navy served in the Black Sea fleet. Used primarily as a logistical support vessel for Russia's Syrian deployment and later the Ukraine war.

Seems like the AK-630 close in weapon system does not have the gun depression to attack these USVs at the range they are detected. The Russian crew used small arms fire to disable at least one USV drone, but the others hit causing the vessel to capsize and sink.