How i learned the hog (well.. im still learning)
1. Startup - good for knowing where everything is
2. Learn what is SOI, SPI, TMS, CMS and DMS
3. WEAPONS/TGP! - yes im that impatient
4. Landing
after that i watched few videos from youtube where people fly missions and i tried to replicate stuff i learned there.
worked for me pretty well this far.