Just completed a great Weston express scenario an still never received a tier 1 mastery challenge, do I need to complete the other tier one challenge straight after the first one.
You need to complete both challenges in any order, or any timeframe to complete a tier. The progress doesn’t always update straight away, sometimes it doesn’t show at all but completes the tier, sometimes it doesn’t register. The mastery is very buggy, and is very much a case of maybe you will get it or maybe you won’t.
