Well I did reach 0 sentence with both my weapons still at level 7. You rarely find rooms doing retributions these days because everyone discovered the save scum trick to farm them and are doing so in private lobbies. I also think that because of the save scumming the game's servers are seeing a big number of retributions not done yet so they decided not to broadcast any new ones yet (didn't receive any in the past 2-3 days).
To explain 'save scumming', it's really more 'swipe scumming':
Assuming there is a chance to be given a Retribution every 5 (co-op) missions.
- Do 5 (or more) missions, return to your Cell.
- The game will save upon leaving the lobby; don't save manually.
- Hit PS button and swipe/close the game.
- Restart to see if you enter on red-ish screen;
- Repeat [3-4] until you have the Retribution you want.
Note that you can gamble to get the specific Retribution mission you want e.g. 101, 103, etc. In other words if you get 109 you can repeat steps [3-5]
Like many other things in this game, it's up to you if think it's worth spending your time to try to get what you want this way.
Edit: I just put in some time to confirm/verify this:
- 5 missions, solo co-op online
- swipe x8 -> Retribution 108
- swipe x4 -> Retribution 102 (kept this)
- 5 missions, offline
- swipe x1 -> Retribution 104
- swipe x4 -> Retribution 104
- swipe x8 -> Retribution 100 (kept this and told myself to stop doing this)
I'm not convinced there is an actual quotum for outstanding Retributions, but that's impossible to (dis)prove without further data ofc.