Due to a miscommunication between the writer and myself, no canonical date of the event's briefing was provided. The briefing will be retconned to take place on the day of the event, May 27.
Any RP that has emerged around the event, the leak of the briefing, etc. should also be considered to canonically take place no sooner than May 27.
I did not expect the event post to lead to this much motivated roleplay being done beforehand and ask the community to play along with this mild retcon for the sake of story continuity. I am posting this here as an announcement and in the event thread itself, alongside an amended event briefing header for the sake of visibility. I'm sorry if this has proved jarring, it's my first time running a proper story event.