Wetwork can be done solo on vet ridiculously easy. It will take a few attempts at the hostage breach but it’s very cheeseable.
Snatch n Grab, that the one with Juggernauts in the airfield?
Also can be cheesed out pretty easily solo vet. Watch on mute.
http://www.youtube.com/watch?v=8bQquEcq5cA
Just keep practicing and you will get your 69 stars in no time.