[Arkshine]

Well then i misunderstood global_get(). Does it return the last trace of a global scope, or does it return the last trace of a local function scope? If on a global scope its matters, if not it doesn't.

The first but I was meant this :

In TraceAttack :

void CBasePlayer :: TraceAttack( entvars_t *pevAttacker, float flDamage, Vector vecDir, TraceResult *ptr, int bitsDamageType)
{
    if ( pev->takedamage )
    {
        [...]
        TraceBleed( flDamage, vecDir, ptr, bitsDamageType );
    }
}

ptr is passed into TraceBleed, right. But ptr is not modified. The next TraceLine uses another vars.

void CBaseEntity :: TraceBleed( float flDamage, Vector vecDir, TraceResult *ptr, int bitsDamageType )
{
    // make blood decal on the wall! 
    TraceResult Bloodtr;

    [...]
    for ( i = 0 ; i < cCount ; i++ )
    {
        [...]
        UTIL_TraceLine( ptr->vecEndPos, ptr->vecEndPos + vecTraceDir * -172, ignore_monsters, ENT(pev), &Bloodtr);

        if ( Bloodtr.flFraction != 1.0 )
        {
            UTIL_BloodDecalTrace( &Bloodtr, BloodColor() );
        }
    }
}

So, the original trace from TraceLine or TraceHull passed into TraceAttack() is not modified. So hooking TraceAttack() and using the trace result passed should be good.