Ok so I was just playing and it said I unlocked Uniform: Rangers Operator and a patch but I don't have them, it's done this before I just thought I was seeing something but I know for sure now that I unlocked it.
I've had that happen to me once. Finished a challenge and expected to get the uniform & patch... didn't happen, oh well.
Did you choose that operation in particular to gain rewards from? Sometimes they don't cough up the patch if you haven't selected which five you really want to do.
The patch I can't explain but did you look at both the male and female options for the uniform? Some of the challenges unlock the uniforms for males and females separately. So you might have earned it for one and not the other.