From the point of view as a Hasselblad user, with several 220 backs, which can be loaded with basic rolls of blacked out darkroom loaded backs, with basic lead and tail of scraped film remains.
All that is needed is a decent dark changing bag, with light proof plastic or metal containers, with caps, so a paperless roll can be unloaded from a 220 back, inside the changing bag, labeled with masking tape, and, if you are compadent at loading previously prepared rolls of film, do so in the field.
Likewise, 70mm film cassettes with used leaders can be used in the field, cassette to cassette as normal, with the polymer leader substitution for paper and, as always, a shorter lenght of film, ie, 24 frames, can be loaded.