Hey there! I've got tasked with planning a one-shot for a 7 player party and I saw that sadly The Bureau can't carry that many players. I didn't see player counts for the other two modules though, do you have an estimate? x))
Might be a bit late of a reply, but the optimal party size for most of the LH modules is 3-4 players. You can run The Bureau with more, but horror in general starts to break down a bit when you have such a large party, as y'all will effectively be a small army tearing this place up. 7 won't be the end of the world, but it'll be more "action" than horror.