A bunch of high level loot appeared in my campaign inventory after cancelling initial MP tutorial I started the MP tutorial and after selecting the adventure pack, selected my campaign party then clicked next to when you start the battle with the DM. I then clicked the return to campain button and did the prison mission. I noticed that i now have a bunch of level 15 and 18 loot in my inventory. I suspect from getting the adventurer MP kit and then returning to campaign.
Yep, all the items are usable in both MP and campaign mode so you can play one mode to get items for the other.
