If you are Pvt. Leonard 'Gomer Pyle' Lawrence, then StarCraft Master is Gunnery Sgt. Hartman, shouting GG sarcastically into your face to prepare for the horrors of
Vietnam StarCraft II multiplayer. Masters is a mod that's just gone live on Battle.net with 30 challenges carefully curated to mimic strategies you'll use when you click that terrifying button that takes you online. You may not like it, but the more you hate it the more you will learn micro-mangement skills and build queues. Do you Larvae understand?
You need only sign into StarCraft II and select the mode from the featured section of the custom game interface, and you'll be put through your paces. Just like PsyStarcraft did here.
Now I think about it, if you were Private Pile, then you'll have already killed yourself before going online. Hmm, forget everything I said and just play some StarCraft II: it's really nothing like FMJ.