Yes you can, but there is a difference if you get it in tth official Phantom Bow Room or via the Box on "Operqtion Outbreak".
If you get it by the Box, you only get accest to the Bow itself.
You can not unlock the two black dogtags from the final assignment, and also not the "500 kills" mastery dogtag for the Bow.
Re ALL !! I rented a dedicated server on XBOX for 1 week. For the moment we are 2 players (Kris Jacks, NewxKing...), need 2 or more other players, do not hesitate to contact us