[Assassin's Creed Black Flag] online trophy partner?

So, I can't afford the new game. But I still have a membership and can play the OG black flag. I'm not too worried about a platinum at the moment, however, with it being an old game, and servers going down soon maybe idk, I wanted to get the online trophies done and dusted before I start the story.

And also so I have less headache for if I do go for play