Talk:Xiphos/@comment-23.239.35.101-20160313233317/@comment-180.200.159.188-20160314150405

That maths would be based on the idea that you get each individual drop one mission after the other. You also need to take into account that in the first run, any of the 3 suffice (which if the drop things works the way I assume, it would mean that the first run actually has a 1.5% chance to get a drop you want, then 1%, then 0.5%, which would be a 1 in 1,333,200 approximately)

But that aside, those odds are fractionalised the more runs are done, so after 6 runs that 1,333,200 is halved to 666,600, after nine it would have been thirded to 444,400, 12 runs becomes 1 in 333,300 etc

Granted, that's still a stupid amount of runs before the odds have become tangible (since 99 runs would still be a 1 in 40,000 chance approx to have all 3 parts) but it's not QUITE that catastrophically hopeless.