What will each side will master?
In my opinion each side will master different ways to get rid of every thing that moves.
VN: They will be covert people specializing in steath, sniping, hacking and stuff that just piss off other people and drive them nuts when for the fourth time your misquto has just stolen and used to kill you.
TR: They will be basically Russia. They get a large group of people and attack everything head on. They won't care if they are losing they will still charge forward with all guns ablaze.
NC: They will be, in my opinion the D-day ones. They will have many dropships fly strat into battle and drop off all their soldiers with jackhammers and stuff. But they will also be the pilots. They will master air combat far sooner then the others.
But I could be wrong But I would like to say that there is a simple statment that would sum up all the sides.
If there is a large wall in a field HOW would you get over it?
VN: Hover over it and leave it alone.
NC: Walk around it and insult it.
TR: Blow it up then Blow up the tree next to it.
And remember The Wookiee is back and The Vanu are the best