Cockpits 2018 + halo

Hello everyone.

I'm working on the 2018 cockpits with halo
All shapes and textures are ready
When I insert the files into wad, the game crashes (gives a log message)
The original cockpit file is car_cockpit_00.gp4
So I created a logical sequence(???) for the shapes in the same way as the carshapes:
car_cockpit_mercedes_00.gp4
car_cockpit_redbull_00.gp4
car_cockpit_ferrari_00.gp4 (etc) and deleted the file car_cockpit_00.gp4
All shapes are there and all their wad files are there
Anyone know if it's possible to create individual cockpits?
I do not know where I'm going wrong.