Hey Decabo, a few notes:
-This does come off as a bit more of a rant than a review to me, and it sounds like your dislike of ME2 is just spilling over into this piece. Try talking a little bit less about what you didn't like about ME2/the other DLC and more about what disappointed you about Arrival specifically.
-Also, try and read it to yourself and see if you can't pick out some awkward phrasing in there. For example:
If this was a full game, I'd be dying to turn off the console. Since this is a one-hour DLC, I was dying to finish and never return to it.
I'm not sure what this is supposed to mean. You could turn off the console either way, right?
-Break the paragraphs up to make a little easier on the eyes.
-Use 'I' instead of 'you' in almost all cases. Writing in second person assigns value to the reader, which you don't want. Only acceptable use of 'you' is something like a rhetorical question.