However, if you've already completed this heist at least once and it was via the same approach, this will be locked and you'll have to use a different approach at least once before it's unlocked again.
You can complete most of the heist Setup Missions on your own, but will need at least one other player for the Finale.In this article we'll tell you exactly how to complete the Diamond Casino Heist in the easiest, quickest way, but before we move on, there are a few things to note: Plus, as we said, it's fun and that's what this is all really for, isn't it? That said, maybe you just feel like checking this one out, which is perfectly reasonable. The Cayo Perico Heist, for example, will net you on average more than twice what the Diamond Casino Heist will since you can play it solo.
It's pretty fun and can be somewhat lucrative but if you're doing this purely for the cash we would recommend looking elsewhere. The Diamond Casino Heist is a huge, drawn-out endeavor.