Just started a 5 week SFAS prep program from "usarec.army.mil"

Highly motivated to see solid results on overall fitness prior to SFAS! My easy day was today which consisted of a 3 mile ruck march to the gym in 37 mins. Then a shoulder workout which was moderate weight, high reps. Then 3 miles back home. Has anyone used this 5 week workout prior to selection, and got selected?
Link to 5 week program:
http://www.usarec.army.mil/hq/sfas/prepare.html
Current apft: 283/2 mile in 12:40 (not happy with score I want a 300)
Please help and guidance for setting myself up for success for SFAS!!
Thanks, James