The cloaks were tied into the FLHook system on the server and were not really intended to be put to use in single player, that's why they don't always work. If you just want to test it for kicks I suggest starting a server (using the 1.67 version) so that Hook runs properly, setting yourself as an admin in the FLHook command line window and beaming yourself to the base with the ship so you can buy it. (setadmin <name> superadmin is the command to give yourself permissions in the hook window, once in game you can use .addcash .beam and .setrep commands).
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Ando joined
Freelancer and Star Citizen modder and fan boy. Role player. That's about it.