Also, you can do 5 consecutive night time ops provided you are provided a suitable rest facility for no less than 2 hours in between legs. Not 3 night time Ops as was was stated.
https://www.law.cornell.edu/cfr/text/14/117.27
117.27 Consecutive nighttime operations.A certificate holder may schedule and a flightcrew member may accept up to five consecutive flight duty periodsthat infringe on the window of circadian low if the certificate holder provides the flightcrew member with an opportunity to rest in a suitable accommodation during each of the consecutive nighttime flight duty periods. The rest opportunity must be at least 2 hours, measured from the time that the flightcrew memberreaches the suitable accommodation, and must comply with the conditions specified in
§ 117.15(a), (c), (d), and (e). Otherwise, no certificate holder may schedule and no flightcrew member may accept more than three consecutive flight duty periodsthat infringe on the window of circadian low. For purposes of this section, any split duty rest that is provided in accordance with
§ 117.15 counts as part of a flight duty period.
What they probably really don’t want is the duty day limits. No more 16 hour limit. You can only extend 2 hours once before getting 30 hours of rest. No more back to back 16 hour days.