The meta world-building is a little all-over the place and uninteresting (a little like the Assassins Creed meta scifi story), but the missions are interesting, intense, and much more psychological and logical than your average manwhua / isekai where everything just falls in the MCs lap in their favor. Many times alternative reasoning and misplaced plans play out, which I enjoy.
Basically, if you're interested in an isekai where the MC thrives more on his wits than over-powered set of skills, this is one of the better ones I've read.