Let me be clear- I really enjoy warframe, its a great game and I have happily invested quite a bit of time and money in it since becoming apart of this great community. However, I have honestly found the Nightwave series to be extremely frustrating to play and the logic behind the system frustrating. What I've found has been provided with these weeklies and their often problematic time sensitive requirements is a 10 week long temp job with out a road map. I think it would be helpful to consider having all challenges for the ten week period available from the beginning and then work with the community to tweak issues here and there rather than dropping a new framework of challenges every week.
Surprises can be nice at first but too much cake can be bad thing. I for one do not like checking in on a monday or sunday to find a challenge that literally demands a daily portion of my life for the next week (time is money, and depending on how you want to see it that is ALOT of money) - I understand that part of this might be a ploy to increase player count but warframe is not competitive - unlike the typical more common version battle pass model that is being applied here. The variables that a player must consider for a BR game(apex, blackout, fortnite, etc) are far smaller than the large expansive content of a game like warframe and tend to be particularly limited to instances of "did I win or not" with rewards and tiers being given to the player or players accordingly.
Following this logic every match within these mentioned games will net you a reward or push you closer to unlocking a new tier, and so on and so forth. The equivalent of this system isn't currently being applied to the Nightwave mission structure and I find that therein lies its biggest problem. Warframe does not typically dictate a "right" way in which its player base must engage and for myself and I imagine many others it is part of that which makes it so appealing. I don't understand why Nightwave shouldn't just be formatted to allow players to gain rewards for playing the game in whatever manner they typically do. If a player really enjoys playing spy missions as an Ash or Loki why not reward them for their playstyle, rather than forcing them to learn to main a nekros in an hour long survival. To me that just sounds like work, not a challenge and certainly not fun. That being said I do find that there is a lot of potential in this battle pass model, but I think it needs to be tailored to fit the beautiful diverse network of people who play this game. Thanks for reading.