Rewards "GR Games" and "Gunsmith"

[FuchsXSX]

Hi Mush,

i have some questions about the rewards.

Regarding "GR games":
Will the rewards be unlocked automatically on release (for those who have save files or achievements) ?

Regarding "Gunsmith":
What kind of challenges are these and when will they be available ?
XBLA is also mentioned in the description !?

Thank you