An armyscout with a high enough rank to lead a few people.
An able former mercenary captain.
A member of an irregular/militia part of the Colonists.
Irregular pathfinder-battalion... whatever.
Wouldn't be that difficult to work a little with that stuff.
Depends alot on how narrow the storyline will be, how hard the railroad will be, they send us on the new adventure.
I think DA:O's prologue method fits perfectly into this scenario. You can have like 5,6 different backgrounds that start of with basic training etc. In the end, they'll link up at a mission. During this mission, the way you handle it will determine you personality. You can literally be the Butcher of Torfan, so to speak, if you choose to. And all this leads to you getting your journey on. Simple concept, proposed earlier in this thread, that should keep most people happy.
For it to work in ME3 you'd have to start as Shepard on shore leave during the Skyllian Blitz or later on Torfan or that Thresher Maw encounter. If you fail the mission objectives or die, then it's game over. If you succeed, then you earned the war hero/ruthless/survivor title yourself.
Since we never got to play those scenarios ourselves, we just got handed the backstory. Imagine DA:O without the origins, instead your character is created in Ostagar and you get two lines of text explaining your past. Which is something they tried to do in DA:I and it sucked.
I really don't see why this is so difficult to understand.
Firstly, it has to start in ME1. ME3 is too late to have a flashback bout it.
Secondly, what exactly do you want? Your first post said something along the lines of "Leaving it up to the player". Are you arguing for more choice or do you just want to be able to fight the battle that makes you a hero? Cos that's what this latest post of yours seems to indicate. If it's the latter, then we're on the same page. If the former, then I say it doesn't work.
Thirdly, I think it's hard to understand because you contradict yourself and aren't very clear on what exactly it is you want. Or maybe it's just me. I thought my example was clearly an example but that took you some time too soo I guess it's both of us.