Should make it that theres s new armor under water Ghille that you gotta use to get near it when you get near it you gotta hit its eye making it not see and feed it kibble(exeptinal) till tamed or it should be a knockout both seem good

This should be tamed by tricking it into stabbing itself with its venomous tentacles, it says in the dossier that it secretes a venomous liquid from its tentacles. Then it knocks out and you feed it yellow kibble.