Every map's SpawnableTypes comes with numerous errors/broken attachment chances, most notable with firearms.

In the attached example, you can see that the MP5K has a 0.20 chance to roll for an optic - but one of the options is the BUISOptic, a rear sight for the M4A1 that obviously doesn't attach to the MP5K. If it rolls on this optic, it just gives the MP5 nothing. As i've already fixed this on my server, this image is taken from the official bohemia github.

This is apparent on almost any weapon that has a picatinny rail - the AUG A3, FAL, UMP45, ASVAL, on and on. While attentive server owners can fix it easily, it still impacts the Official server experience.