Mongo Bulk Update with Multiple Heterogenous conditions

//https://docs.mongodb.com/v3.2/reference/method/db.collection.bulkWrite
db.enemies.bulkWrite(
      [
         { updateMany :
            {
               "filter" : { "rating" : { $gte : 3} },
               "update" : { $inc : { "encounter" : 0.1 } }
            },

         },
         { updateMany :
            {
               "filter" : { "rating" : { $lt : 2} },
               "update" : { $inc : { "encounter" : -0.25 } }
            },
         },
         { deleteMany : { "filter" : { "encounter": { $lt : 0 } } } },
         { insertOne :
            {
               "document" :
                  {
                     "_id" :5, "char" : "ogrekin" , "rating" : 2, "encounter" : 0.31
                  }
            }
         }
      ],
      { writeConcern : { w : "majority", wtimeout : 100 } }
   );