Jack of all Trades
Ultra rare0.2%All-the-thingsOptional
Complete 3 missions in each of the World Photographer, Career, and Challenge League modes
This doesn't actually need 3 completed in each - various reports of unlocking with less than that; e.g. only 2 Challenge League, only one World Photographer.
Either way, you'll be progressing all three types anyway for various other achievements, so this will pop soon enough without any special effort directed towards it.