I'm trying to edit Cod4 guns to add a diff texture, however... no matter what program I use the DDS auto remaps the MIPS so instead of importing normally as texture should for mapping it actually imports as the gun would look like in the game

This is an example of how one should like as a character mapping but the same concept for a gun that is a template for dead pool just only example I could find but you see how it's not altogether it's split up well I need that for the gun to edit it properly... any help in this would be really great i've tried photoshop and gimp. Even online services. all come out the same...

System Spec: OS Name Microsoft Windows 10 Pro Version 10.0.19042 Build 19042 System Manufacturer Dell Inc. System Model OptiPlex 7450 AIO System Type x64-based PC System SKU 079C Processor Intel(R) Core(TM) i5-7500 CPU @ 3.40GHz, 3408 Mhz, 4 Core(s), 4 Logical Processor(s) BIOS Version/Date Dell Inc. 1.15.1, 7/5/2020 SMBIOS Version 3.0 Embedded Controller Version 255.255 BIOS Mode UEFI BaseBoard Manufacturer Dell Inc. BaseBoard Product 0V0D45 BaseBoard Version A01 Hardware Abstraction Layer Version = "10.0.19041.906" Installed Physical Memory (RAM) 16.0 GB

Name Intel(R) HD Graphics 630 Adapter RAM 1.00 GB (1,073,741,824 bytes) Driver Version 27.20.100.9466