Three of you, in the same room, on the same call. Two missions, a round table and a fire. One of you may be a Traitor. It is possible that none of you is.
Send that link. It opens the game on this mission and drops them straight into this room — no code to read out, no account, no download.
You become the host. Read the four letters out to the other two.
Type the four letters somebody read out to you.
Saved on this machine. The other two see exactly this.
Solo practice. No table, no fire, no one lying to you.