"Arriving East" scenario
In the yard, change switches 1 and 2 to exit the yard. Go slow (start at MP 34) and pay attention. As you enter the yard at Victorville, all switches should be set to send the train straight. Switch as needed. You will want Siding 5. Stop after you reach Siding 5 and wait for confirmation.
"Cajon Pass" scenario
In the yard, switches 6 and 9 must be changed to exit the yard to the main line. When out on to the main line, keep a close eye on the information accessed by F3. F1 ad F4 also have useful information which can be pulled up. Stop just after MP 60. This due to a rock slide which crews are working on. Pay close attention to the information on F3, second to the right. This will tell you the distance until your next destination. Just after MP 50, slow down to change you route. This should be done without any switching. Slow at MP 46 or even just beforehand. Change switch # 1 in Hesperia. Stop at .4 miles until the destination then wait for confirmation.