When exporting a loadout from the arsenal using Ctrl + Shift + C, the loadout is not completely exported. To be more specific: All weapon attachments like scopes, muzzle attachments (suppressors), rail attachments (flashlight, IR Laser) are missing.
These attachments should be listed under linkedItems[] = {}
Due to the overhauled respawn screen and configuration of respawn loadouts the arsenal offers an easy way to edit loadouts and configure them for respawn. This bug causes it to be rather useless, as it cannot be efficiently used for mission design, as is necessary to add all the attachments by hand.