Extract files from bo2 without using Greyhound

[riosuki]

Recently I was trying to extract the weapon models from Call of Duty: Bloodborne 2 Zombies. I tried doing it with the game open, but without success. Then I tried messing with the base.ipak file, but it didn't work; only images appeared. I want to create custom camos from a 3D model using Blender. I was going to place the 3D weapon model and then apply the texture on top to give the weapon its texture, but when I did that, the texture wouldn't merge with the weapon. Then I tried editing the .dds files, but that's a lot of work. I wanted to know if anyone knows how to do this using Blender with the 3D model and texture together in Blender.