They were slightly silly in that there were two ways to do them:There's one mission type that I miss. Pilot Rescue.
Doing those was really fun, and you actually had to search for those guys, crashed somewhere on the planet.
They're gone, though, for unknown reasons. It sure wasn't because they paid well.
1) Find the mission, go out and look for a nearby pile of escape pods, hand in to complete the mission.
2) Scoop up a giant pile of escape pods as you go along, then hand them in to whatever missions you happen to see.
Arguably the Search and Rescue contact - now that it pays a decent amount for escape pods in 3.0 - is basically a permanent version of that mission.
(But I would like to see a "rescue a specific crashed pilot" version of them return in future)