I'm having an issue with the tail end of the fuselage, I extrude the vertices and the surface complies with the base, yet, the wireframe of the object doesn't show that like the one in the video. Here is a screenshot of my issue. https://www.facebook.com/photo.php?fbid=1210696108967866&set=a.1210696085634535.1073741836.100000824662081&type=3&theater