Because the player model is the APU mech from Matrix, and, when modelled, I got rid of the "head", so the POW is about at he height of the neck, instead of the POV you´ll have looking from your eyes. Aniway, I have meditated about this problem and I have found an alternative solution.
This problem I have comes because I have resized the player model, about an 80% of its real size in HLMV, but I have found too many problems with the model itself. The model was smaller, but the POV was the original, and I cannot make it to fit the new size of the resized model.
In the other hand, comes the problem explained here:
http://twhl.info/forums.php?thread=18778And, worst of all, comes the extrange problem, no matter what I did to fix it (code, modelling, modifying the QC file of the model, etc.) of the player model floating one meter from the floor!!!.
Finally I decided to REDO all the zion map, a 25% bigger, so I got rid of the problem of resizing and screwing a working model and many parts of the sourcecode of the MOD.
Thanks to all for your replies!! ^_^