The Little Things 2.0

The asari to the right of Lt. Kurin on Thessia is carrying a revenant

And both are based of Mars. The base is an Image taken by the Viking probe, I believe.

Just as the beam  is fired from the Citadel, two reapers can be seen dead, one in the top left corner , the other in the top right corner, as well as debris from alliance ships in the bottom middle in the destroy and synthesis ending

In ME2, Kelly will tell Shepard that she believes the message for him/her is from Admiral Anderson. When reading the email, it is from Admiral Anderson. When Shepard talks with Anderson, if the player has the subtitles on, it will say Captain Anderson.

I just finished playing ME2 and did Arrival after the suicide mission, then I went to talk with Anderson for the first time in the game. The dialogue is the same as if Shepard talked with him at the beginning of the game.

On Menae, when Liara/James say they fixed the tower, start running all the way back to General Corinthus. He and Shepard will continue to have their dialogue as if Shepard is still fighting near the communications tower

When listening to Galactic News on the Citadel, it will mention that witnesses have reported seeing Shepard on Omega even if he/she hasn't visited Omega yet.

Before recruiting Jack, there's a cot already setup for her to use

The Ghost of Ashley Williams

When Anderson is seen crouching behind cover, do not move forward since it will cause him to climb over and head to the next area. This happens right after climbing the ladder. Instead, after climbling the ladder, head to Shepards left and travel to the wall. Turn right and walk till Shepard has to climb over. Look to your right and see Anderson still behind cover. Climb over and continue forward until Shepard walks to the wall. Turn right heading towards the area that has the husks climbing the wall. Anderson will remain in cover and still will have the same dialogue as if he's in front of you.

I ignored the husks and went all the way back and Anderson was still crouched behind cover. I went back, the husks disappeared and I was able to climb down the ladder. Once down, I killed all but one of the husks. I looked over I saw Anderson was still in the same spot behind cover. He showed up after I killed the last husk and the reaper fired its laser

Instead of using the turret on Menae, I used pull for dealing with the husks because of its quick cooldown. A couple times a husk would float up to the barricade and Garrus would say. "they're on the barricade".

Ashley - There ain't no putting her down. Tough as nails and all marine. I have always liked her.

Edit:
What I don't understand in this vid is the 3-D depth perception, and how the camera can move all the way back to behind the scene in a static picture. This make me question the validity of this vid. It seems more fake to me now after watching this several times. I don't believe my eyes. Video editing is pretty good these days - so I don't always know what's true, until I run the scenario myself.  Great looking vid, though. Nice job. Damn - now I'm going to have to start another run-through. Thanks, Mike.