Today I monitored a large military 4 engine airplane ( Im not famiiar with the type of aircraft) doing exercises.I only saw one airplane flyover numerous times.They were talking about a scud missle going down the street and cilivian children & things like that.They were on 143.70mhz. The callsigns were Rage (or Ranger) 88 and Stringray. This is unusal for Lubbock. Any ideas where they are from since there are no basaes near Lubbock.