CoD WWII modding: edit models and re-importing them in-game

Hi,
As I wrote on the title, I would like to know if it would be possible to export CoD WWII weapon models, edit them using blender or other modelling programs and re-importing them in-game. Of course, It would be better if the extracted models already have got the original bones and joints attached to them.
Obviously, I’m willing to change the models for the campaign only…not interesten on the MP part of the game

Don’t think so tbh