In other words, you want a happy ending.
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Problem with the happy ending in this game is it wouldn't actually work. I think if were presented with the highly polished everything all nice and fluffy and happy ending, it would have been on par with the level of insult we got with the original shit endings.
One thing the producers of the game spoke of that I did agree was the tone of sacrifice through the game. I loved the end where all the characters said goodbye to one another, even in between missions with everyone sharing how they all felt about one another and the world around them crumbling, hell I cared about these characters more than I do some actual friends.
Everytime I played ME2 my entire crew survived the suicide mission, so it wasn't impossible that the perfect ending was achievable. But in this scenario, galaxy wide invasion with a near unstoppable juggernaut of an ending, somewhere down the line we had the serious potential to lose someone in a situation outside of our characters control. Look at Mordin, as I understand it there is one way to save him but at a huge expense elsewhere. I lost EDI as a result of my choice of ending, everyone lost Anderson but I did not want to see Shephard die, and as a result of my ending - He didn't. Far as I was concerned I want to see him put up his feet with the crew, dock the Normandy somewhere sunny and live it up with Tali.
It makes sense for Shephard to have a way out, look at the control and synthesis ending, we have no body left. With destroy we do and it just so happens we have an out, a way to continue Shephards tale and I can't wait to see what they do with that.
We originally lost the relays and the citadel, huge mistakes given how that basically screws over everyone else so I was glad to see them reconsider that one. There is not enough material for a 4th game, but it would be nice to see DLC that wraps up the Destroy ending and gives us as you put it a "Happy" ending.