User blog comment:Lady Blue/Just reached level 50 in SAS4/@comment-4676581-20150216180209/@comment-4676581-20150216181337

It's a game of chance that's all I really can say for about the strongboxes. quality has no major game changing factor it is all about quantity as in the more boxes you haul in the higher your chances of getting something.

Who knows their is a chance that some black boxes may have the value of a thulium chest or a thulium chest having the value of a steel strongbox.