The story was pretty boring overall. I enjoyed it, but I'm definitely looking forward to playing just about anything else which so far has been far more engaging and interesting. One way I look at it is now that I've played this class till the end of Chapter 3 the rest is bound to only be better.
Of course it's to be expected that it plays out very military like, you're a solider. Sure, a commando of the Republic's best but you're still doing what you're told with some freedoms here and there. The most memorable part was the last quest of Chapter 2, nothing else has given me the same ****** moment before though...maybe towards the end of Chapter 3 I guess? But certainly not so much as I had hoped.
To each his own, but I would personally not recommend the Trooper for story. It's a fun class, Vanguard and Commando alike. Perhaps I was a fool to think there would be a good story on this class, but then I picked it because Commandos get a big gun...a reason I likely share with many other players