Vehicle destroyed with Lis doesn't count

@ImmutabIe I remember the tracking was really frustrating. Sometimes you kill the passengers, but the vehicle is destroyed by someone else.
So kills don't matter for the tier progression, only "Vehicle destroyed" or a "Vehicle assist" count.

Maybe as a hint, when you destroy a just abandoned (now neutral) vehicle, that counts as a vehicle kill. If your rocket killed the whole crew, and the vehicle explodes, because it is no longer controlled by a player, doesn't.

But that is my observation, and was about 3 months ago, so mechanics may have changed.

@ImmutabIe you made sure you destroyed this vehicles with Lis's rocket launcher, not using anything else while playing her character?

Cause it has to be her unique rocket launcher.

Also did you pass T3 with her already and did you play on Solo/Coop then or maybe on any other progression restricted servers?

Cause in Solo/Coop progression only works until T3 and also other not official servers might have progression restrictions. 

Greets,

Travis