I'm a game art student at the art institute of Atlanta.My ultimate goal in game design is to have people anticipate the story more than they anticipate the game. As a storytelling medium it has more story telling potential than any before it we have seen the first tentative steps in this direction from bioware but i want to push it even further.
You didn't pay attention to the perspective - these two "lines" are on the middle. Actually it's the separate detail "hugging" the tank.