The wording on the roster rules seems ambiguous to me.
"ROSTERS & SQUADS
Players use standard rosters throughout this league as defined in
Core Rules except they must use the unique Crisis Cards for the
league. The rules for building a roster can be found on page 9 of
the Core Rules book, found at AtomicMassGames.com/Rules."
Is the intention that players construct one list for the entire event or just that in games players construct a standard roster with the league specific crises instead of the normal ones?