OK, I had a look at the anims and the config. The anims were fine, except
Deathslide2 which kept moving the body forwards. I corrected that for you
There's nothing immediately wrong with the config, but I think it has something to do with you linking both the Deathslide and Deathslide2 to StandDying. If anything, you'd want Deathslide2 to be inherited from StandDead.
To be safe, I completely changed it. It is now a combat anim (ie. will only work when the unit has a rifle). But that's another thing that was bugging me. Are you gonna be using this for general ingame use, or just scripted in a couple of cutscenes or something?
Hope it works