Was asked tonight when the game unlocks

The short and sweet version is that if you play on PC you can play depending on how you purchase:

Origin access - Premier ($15/mth or $100/yr) Nov 9
Origin access - Basic ($5/mt or $30/yr) Nov 9 (for 10 hour trial only)

Deluxe edition - Nov 15
Standard edition - Nov 20

Here is official BF page detailing the dates, for your reading pleasure:
https://www.ea.com/games/battlefield...-to-play-early

https://www.ea.com/games/battlefield...-to-play-early

I hope to be playing on the 9th, bc I did indeed invest in the OA premier so I can access the vault. There are several games in it I wanted to try. And yes Bacon, you can cancel your OA membership at any time, so you can just buy it for one month, get the game with a 10% discount, then cancel it.