Board Thread:General Discussion/@comment-33192627-20170926212506/@comment-33199637-20170927223427

It's a planned feature since new players don't necessarily consult the wiki first and thus may only stumble upon a few wrecks, hence the multiple placements. The logic behind this is to divert the player from zig-zagging biomes in search of fragments towards focused exploration and searching for wrecks, since they give you a motherload of fragments and a shiny new gimmick (same as with the Degasi bases), thus the player feels like he is getting rewarded something special instead of mindlessly working a skinner box, and to ensure that a new player gets reasonable access to upgrades even when having a hard time locating the wrecks.

Also the contents of some boxes are randomized and can contain different items from the same "tier", and some contents (Prawn Arms most prominently) can be scanned as well as found.