[Arkshine]

1) No, because it's called just when you really touch a weapon, so basically after checks like :

void CWeaponBox::Touch( CBaseEntity *pOther )
{
    if ( ~pev->flags & FL_ONGROUND || !pOther->IsPlayer() || !pOther->IsAlive() ) )
    {
        return;
    }

    if( pOther->m_fIsVIP || pOther->m_iUserPrefs & USERPREFS_SHIELD_DRAWN )
    {
        return;
    }

    pOther->OnTouchingWeapon( this );

    [...]

2) Ham_DeathSound already exists.