Some of the rare ships (you know, the ones painted shit brown), the ones that have the laser guns or whatever you wish to believe they are, mounted on the tops of the ships, (they have a greyish cylindrical shape to the back end) you can notice that the one on the right is slightly sunken into the ship itself. This pissed me off FOREVER up until I beat the raid on hard. Just saying, attention to detail is a priority in the military (I should know) but apparently it is lacking at Bungie with their game developers.