The 49ers host the Seahawks this Sunday in a massive matchup not only of the NFC West's best teams, but of two of the more competitive fan bases in football. It'll be a "red-out," but in addition to color coordination, the Niners took the time to email fans with gentle reminders to be on time, cheer, stuff like that.
The letter is below. Fans received just the part beginning with "Introducing The 49ers Home Field Advantage Plan For Gameday," but this is the internal memo, sent by VP of ticketing Jamie Brandt to a number of fellow employees. Enjoy, and don't cheer when the Niners are getting ready to snap the ball.