Assassin's Creed 4 + Community Challenges/Items/Events

[gedzum]

Just wondering if anyone here plays AC 4 and does the community events? I need some help trying to get those Naval Convoys and some other items for the unlockables, but haven't had much luck finding anything recently (other than those white whales). I'm on PC/Uplay. If I can't find anyone here, I'll try on Ubisoft's forum.