Right at the beginning of the tutorial: the Engineer-specific objective in the crew quarters to seal the micro-breaches might be frustrating to a new player. The micro-breaches are invisible and there are no waypoints on the minimap, so you either need to wander around hoping to stumble into them or scan with the tricorder…
You do realize that the doff packs are "random purchases," right? Besides, 95% of the duty officers you open are worthless, and you're never going to open that perfect purple engineer with stubborn and resolve and whatever. It's the same principle with lock boxes, it's just that the prize pool is a different set of strings…
You know, I'm ok with this. The prizes are all pretty neat, and master keys are dirt cheap on the exchange anyway. Will there be gold boxes like before, too?