When I take a look through entropedia im seeing certain BP's for example :
Brünnhilde (C,L)
Hoverpods
Hyperplex truck and helicopter
Jormungand Mk1 ,2,3
Naglfar Mk1 (C,L)
Saehrimnir
Valkyrie
Apparently these are all craftable but I have probably only seen Hoverpod and Saehrimner BP's for...