The TEWS does not indicate that a friendly F-15E is locking you in STT. I have reproduced this in BVR training missions with others. Upon launching AIM-7M, which require an STT track, there is no lock warning, or launch warning from the other F-15E. This makes air to air engagements with friendly F-15E's very difficult as there is no way to detect a buddy lock ,as no TEWS lock warning is indicated when you are locked by a friendly F-15E. In many cases we have also noted that the TEWS does not even show a friendly F-15E on the display detecting its radar emmisions.