Factory Reset

So, I’m a member of the Preview Program. I’ve had some issues with it and am dropping out of the part where you get multiple updates a week (some of which make your console unstable) and part of the process is your console being factory reset. I purchased the Limited Edition and got the Warzone REQ Bundle. My concern is that after the factory reset is that I’ll lose access to this. Should I be worried and copy that onto an external HDD or will I be able to go into the Store on XBox and simply re-download it?