Hi, I want to do the same thing, recolor the LAPD SWAT person unit, to use it later as a new FBI HRT person unit.
It should be very simple, but I have spent many hours without success.
I have the unlocked lapd_swat.dds and open it with DXTBMP tool.
There I clearly see the image and the black alpha channel in the upper right corner.
So I select send image to editor (PAINT.NET).
In PAINT.NET I select Adjustments->Curves...
I unmark R (Red) and B (Blue) and increase G (Green) to make the texture look more green instead of blue.
Perfect I think and save it to the default name norm.bmp so that DXTBMP tool can detect it.
Back in DXTBMP tool I select refresh image from editor and I now see the green variant of the LAPD SWAT texture still with the black alpha in the upper right corner.
Now I save it as DDS DXT 5 and overwrite the file lapd_swat.dds and open the EM4 editor with LA mod.
The problem I see is that the LAPD SWAT person unit is totally covered all over the body with a green shiny smooth color.
If I unmark the alpha channel it becomes totally black and anyway I must use the alpha channel for the MP5 weapon to be visible in the game.
So I would very much appreciate if someone could help me with the steps of doing this the correct way using DXTBMP tool and PAINT.NET if possible?