[{"_id":"69ajdslsdfdksjfef9","col1":"456780","refNum":"ref001","clients":{"CLI_1":"9876547390","CLI_2":"fsdfasl"},"names":[{"first":"dfsakfj","middle":"hgfgas","last":"komdssdfsd"},{"first":"dfskdajf","middle":"fgjfgjfl","last":"ghfghsdklfg"}]}]

db.collection.aggregate([{$unwind:"$names"},{$project:{_id:1,first:"$names.first",middle:"$names.middle",last:"$names.last"}}])/** _id, first, middle, last*/