This is a DC-10, working for 10 Tanker Air Carrier out of Albuquerque. http://media3.washingtonpost.com/wp-srv/photo/gallery/090831/GAL-09Aug31-2543/media/PHO-09Aug31-176142.jpg http://www.10tanker.com/
I love the details that you are putting into this, stn alarm, engine start up, radio loop, this is going to be so good, don't play em4 anymore as much as mess with the editor, but looking forward to giving this a go.
I got the same issues on my map, I thought that it might be detailed polygons, but that wasn't it (still not sure what they are though). Hope somebody has the answer. btw, loving the look of this mod