- Not bringing a nuke (like the one from Jack's loyalty mission) inside the Collector ship.
- Not confronting Liara about handing his body over to Cerberus. Shepard is stuck with Cerberus because of her. Don't get me wrong. She did the right thing when she gave them his corpse. I'm grateful that Shepard's alive. But what she did wrong was not mentioning this to the Council and the Alliance. If she did, then perhaps he wouldn't have been forced to work with Cerberus in the first place.
- Not calling the Normandy to shoot down Balak's ship, Vido's gunship and Kai Leng's gunship.
- Not suspecting that Kenson could be indoctrinated... despite Kenson admitting that her mind was touched by a Reaper artifact. Hey, what could possibly be wrong with that?
- Just standing like an idiot in front of a Reaper artifact, and allows it to zap his mind.
- When releasing Kenson out of the interrogation room he says "I'm Commander Shepard." Perfect way to be discreet, Shepard. Y'know, everything is being recorded in there. My Shepard was wearing a helmet to keep his identity hidden, but this scene completely ruins it.
- After escaping the batarian prison, he doesn't bother calling the Normandy to tell them where he and Kenson are going.
- "Joker, drop the Mako right on top of Saren. Don't bother shooting him. That would cut all the drama."
- killing the Thorian. Why am I forced to commit genocide? It was a very unique alien life form, the only one of its kind. If I understood correctly, Exogeni tried to study the Thorian against its will so it fought back in self-defense. It worked with Saren to get better security, but Saren betrayed it and sent the geth to kill it. I don't blame the poor thing for mistrusting Shepard. What makes this even more depressing is that the Thorian managed to cure Shiala's indoctrination. This could have been a potential trump card against the Reapers.
- Just standing there like an idiot when Fai Dan shoots himself in the head. Throw the anti-Thorian gas grenade!
- "Vasir, these pipes are on fire! I don't know what to do!"
- Greeting Liara so romantically on Mars, despite that I broke up with her in LotSB.
- Being all self-righteous when talking to Gavin Archer in ME3... despite that I handed David over to Cerberus in ME2.
- Defending thermal clips when talking to Conrad Verner. Conrad is right. This thread said it all. My Shepard carries a M-7 Lancer or Prothean Particle rifle for a reason and I try hard to ignore thermal clips even exist. For me, it's always ammo.
- Showing absolutely no regret for killing Udina. What? He was one of my favorite characters in ME1.
- Omega DLC -- not being able to reroute power to all systems unless he's an engineer class. My Shepard's an Infiltrator and he did most of the hacking and repairs throughout ME1 and ME2. Remember repairing Peak 15? My Shepard did it without using 100 omni-gel. This is how the choice should have affected ME3. If you solved this puzzle in ME1, then your Shepard should have been able to get this interrupt.
- At the beginning of Grunt's recruitment mission, Shepard comes across a wounded Blue Sun mercenary whom you can intimidate to give false coordinates, which will result in another squad being wiped out by the krogan. Then, Shepard decides to allow the merc to walk away...with the radio.
- Not telling the Destiny Ascension to attack Sovereign. I saved that ship for this reason only.
- Not calling the Leviathan a big stupid cuttlefish.
- Javik's goodbye before the EC. My favorite character admits that he'll commit suicide and Shepard doesn't seem to care. Pissed me off to no end. At least the EC fixed it.
Maybe I'll post more later.