Gta 5 Casino Sewer Entrance. If you run low on time leave the casino and drive away. If you fail the mission or run out of time you lose all locations you have scoped.
One very important thing to note is that you must not go near the casino after you come out of the other end of the sewer tunnel. A short distance into the tunnel you will spot a metal grate on the right hand side. Keypad door right down the stairs behind the bar.
One very important thing to note is that you must not go near the casino after you come out of the other end of the sewer tunnel.
Tunnel boring machine is an optional prep mission featured in grand theft auto online as part of the the diamond casino heist update. Head over there and go inside and take a picture of the sewer grate. Near the end of the storm drain is a side exit that goes underground. The garage door of the security tunnel underneath the race track to the right of the casino.
