Mongodb query by project and reverse array or sort in descending order [duplicate]

I would like to do aggregation by using $project to query array of objects to get single field data and store as array in descending order or reverse array. I had searched for some solutions at stackoverflow but did not see questions with project query then reverse array.

For example below is my mock data:

   "models" : [ 
     {
        "model" : "abc002",
        "total_modules" : 2
     },
     {
        "model" : "abc003",
        "total_modules" : 2
     },
     {
        "model" : "abc004",
        "total_modules" : 2
     },
    ]

I have tried with the below solution but it is not exactly what I want as the output is slightly different as shown below:

db.collection.aggregate([
  {$project: {"models.model":1}}
])

Output:
   "models" : [ 
        {
            "model" : "abc002"
        }, 
        {
            "model" : "abc003"
        },
        {
            "model" : "abc004"
        }
    ]




**In fact, I would like to get this output:**
{
   models: [ abc004, abc003, abc002 ]
}
OR
{
   models: [ {model:abc004}, {model:abc003}, {model:abc002} ]
}