I know it's incredibly frustrating, but it's been confirmed that this issue is being looked into (there's a confirmation from EA_Pulsar here in case that helps: https://forums.ea.com/discussions/battlefield-franchise-discussion-en/game-disconnets-when-you-choose-tank-plane-od-cavalry/11928138/replies/11930885). I'm sure that when there's a fix, one of the Community Managers will make an announcement here, but it's unlikely that they'll post anything in the meantime if there is no news to share.
While I do not know the exact nature of the problem, this should not be taken as a sign that EA are trying to kill off Battlefield 1. If that were the case then more than just PlayStation servers would be affected and there would also be a general announcement about multiplayer ending, as was the case with Battlefield 1943 and Bad Company 2 etc last year.
We are too much more players in BF1 than 1943....... If they want to finish the game this is the way to do it.
