Bug Found: HUD not appearing
At the start of the mission, the HUD does not display, which means that you will spend countless hours looking for the first objective.
To cut that time down drastically (until fixed) then heres the directions:
1. From your house, head right then right again and get onto the freeway near Grove St.
2. Take the first exit off the freeway and turn left.
3. The first marker is outside the "Just Business" building.
4. The second is in the car park of LS Stadium.
I hope to fix this bug soon, it seems to happen when a mission or objective is in a interior.