Xbox 360 Assassin's Creed 4 unlockable items? Can someone add me?

[gentlecan026]

Hi so I've been playing ac4 on Xbox 360 and I need help with unlocking Scottish broadswords (3 social treasures) and other unlockable stuff. So what I'm asking is can someone please add me on Xbox live a d share some social treasures with me? My gamer tag is Articwolfeight.
Also, what are community challenges? I know nothing about them, only that they unlock a bunch of stuff. Where can I fi d them or how do I complete or activate them, whatever?
AND how do I find royal convoys for the Aquila's wheel for the jackdaw? I need 3. Any answers for any of those questions would be appreciated thanks!
Ps. My Xbox is not connected to the Internet right now if that raises any problems. but in getting a wireless adaptor for it soon

[aron]

You do need an internet connection. Add xoshaow3, I'm gonna be playing in a day or two and will help u with tht