Abandoned Camp

The planes are either in the hangers, or flying around at the time the photographs were taken. Besides which, I don't think an aeroplane has any identifying marks when viewed from above; anti-aircraft guns aren't going to be shooting at the top of a plane, and in a dogfight a pilot presumably knows which models are on whose side.

On the second disc is a genuine computer game- pinball. The three high scores might be a coded message, but I think that's unlikely.