Roger, received. I'll do a Wild Weasel patrol for a while. Over.
No, it just means going freestyle, to see if anything unusual is in the air. Random plane fagging for spoopy commerial planes, for example.
On the recording you should have been able to hear Master Alarms in the cockpit, for low terrain and low fuel.
As it's a commercial jet, there should be some flight recorders retrieved from the wreck site.