Need help getting 3 network achievements. (Assassin's Creed 3)

Got the last 3 achievements that I want to. Unfortunately, after 6 years after the game's release, it was not easy, so if anyone responds and wants to help me, here is my Skype: genprokurorsky.
My accounts
Uplay: northerncomplex
Steam: http://steamcommunity.com/id/northernhard/