I have a model of sargeant_muzzle_flash with 32bit PNG skin, and the flash must gradientaly translucent from center to the edges. and when i run the game, i see that only absolutely translucent skin parts are 100% translucent and all others are not translucent at all

Is it fixable?
Here is the pack you to see what i'm saying about:
http://slil.ru/24035622
mirror:
http://alex-bomberman.narod.ru/models/others/Gzdrp.pk3
BTW: it is my GZDoom Resource Pack, that i make for GZDoom.. Contains optimized middle-poly MD2 models and full dynamic light data

What can you say about idea?