'milestone' => [
     'columns'  => array(
         "JobDept"                      => "department",
         "JobBranch"                    => "branch",
         "Destination"                  => "destination",
      ),
 ],

"XML Element Name => Database Column Name"

$data = $xml->parse([
    'report' => ['uses' => 'item['.implode(",",$xmlFilters).']', 'default' => null]
]);

0 => array:3 [▼
  "JobDept" => "FEA"
  "JobBranch" => "AAL"
  "Destination" => "TWTPE"
]

0 => array:3 [▼
  "department" => "FEA"
  "branch" => "AAL"
  "destination" => "TWTPE"
]