Opfor faction with Blufor model and textures

[zukov 490]

some months ago, i made a custom Opfor faction (FIA Rearmed). I wanted reuse the woodland camo in Vanilla game. I noticed quickly that whole gameplay was slowing down and  the blood textures disappearead. I know that there is a code to add texture blood. 
but the questions are two
1) there is a hardcoded limit to move the Blufor model to a generic Opfor faction?
2) If  i want to mantain clean code, how to write the custom faction without to add the injuries code to each characters? is possible to inherit it just  from Blufor model?

thanks in advance
image is the idea behind this post