Really hard to tell what is going on in this war. I don't trust either side very much. The Russians the least. I expect that the ship was indeed hit by two Ukranian missiles as they claim. The Russians then screwed up the damage control and lost the ship due to that. Either way, it's a valid Ukrainian claim on sinking the ship. This ship was central to protecting the other Russianships in the area so its loss is a severe one.