******WARNING MASSIVE SPOILERS!!!!*****
I will start by pointing out that I did not import any of my saves from ME1 or ME2. I wanted to start from scratch.
I had just completed the mission where I take out the Reaper with the laser device. Big explosion, its dead, awesome. Then cut scene comes and explains the Geth / Quarians. THEN I have to make a decision between Geth (upper right) or Quarians (lower left). This whole time Tali is begging me and usually upper right is the positive reply. So I pick the positive reply and to my surprise, a cut scene comes showing the Geth wiping out the Quarians!!!?? Then if I already dont feel bad enough, Tali is crying and then removes her mask and kills herself by jumping off a cliff!!!??? One of my favorite characters of the series!?!!!?!! Then the geth robot kills himself. (no it was not Legion from ME2) What the heck did I miss or do wrong???!!!! I am a paragon and my rating was very high. So at this point I lost one of my favorite characters and really dont even feel like playing the campaign anymore.