[BFComms] Deep Six Event and More

We've noticed some discrepancies out there regarding the timeline for the Deep Six event. To clarify, the in-game timer is correct, and the Deep Six event will conclude on September 28.

Following the end of this event, we're kicking off a two-week celebration of the first year of Battlefield 6 which will close out Season 4. There won't be a dedicated limited-time mode and it'll focus on new challenges and rewards to finish the season strong.

Thanks for playing, soldier. 🫡 @role-name