Even if you are not in a group you still get the credit for the kill, you will however not receive any loot. So if you want loot make sure you are in the group, if you just want the quest, fire away
No, What you have on the PC will remain on the PC. Any purchases you make will stay on the platform that you make the purchase on. You will however get a companion on the Xbox one if you link your accounts together.
If you press Left Button + D-Pad UP it will bring your map up. the Gift claim NPC is in the top LEFT corner of the map. It has a big yellow/red gift box as its icon :P
I understand your frustration. This game is NOT hard at all. However I don't believe this game is optimized for xbox like they say it is. In dungeons It looks like I'm watching a slide show its horrible. For me anyway. And the pugs I've been running dungeons with don't seem to understand that these dungeons have adds. So…
I agree, the Heirloom pack well worth the $20. I ended up getting both the Dragon born and Champion packs as well :c. Although now I basically one shot all lower level content on a DC -_- But I guess that is okay. Will get to endgame faster like this.