Guard Patrol Routes is an optional prep mission featured in Grand Theft Auto Online as part of the The Diamond Casino Heist update. It is a freeroam mission needed to progress The Diamond Casino Heist. Completing the mission will show all security guards as red dots on the map during the heist.
Description[]
Lester informs the players that The Diamond security team keeps hard copies of the guard roster in the boot of a car. Players needs to make their way to a semi-random car park, such as one in Little Seoul, Pillbox Hill or the one next to the Galileo Observatory, where the Duggan security team is having an off-site meeting.
Once at the meeting, Lester will send the players the number plate of the car containing the guard roster. The correct car must be found while avoiding or taking out the guards present at the location. The target vehicle is always a Felon GT, and once it is found, a player must open the trunk and take an image of the document. If the image is sufficient, they will have the option of sending it to Lester.
When the close-up of the roster is sent, all players need to leave the area to end the mission. If the guards are alerted at the meeting, all players will receive a three-star wanted level, which needs to be evaded before the mission can end.