OOC: Because it's always needed.
At Rank 1 you would have what I posted for a Grunt. Military combat training. Trust me, you don't pick what they teach you, they do. Ask any vet. :-)
And then your first batch of powers is on top of that at rank 2.
Now, keep in mind that the Grunt training has 3 power sets already, so you won't get bonus powers for quite a while if you opt for that.
I'm not recommending it, merely making it available. Note that it comes with some predetermined attributes, as well.
Actually, on consideration, I'll make it an individual choice. Don't worry about voting. If you want to be a lifer that's undergone the process, take the Rank 1 grunt template and add Rank 2 and powers. If you want to be new and untrained, with a full set of chosen powers, be a Rank 1 with the basic Occupation training and not much else.
If you absolutely have to be an officer or senior noncom, take your free Trait for your new rank as Extra Occupation: Leader
And, with that, you folks can start working on characters.