Mako knew he had to act quickly while the smoke cloud lasted. He continued to use Motion sense to dodge the random incoming blades of fire as he maneuvered around under the cover of the smoke.
Within the smoke, Mako had an advantage as Mikhail couldn't see him, but Mako could still see him. Analyze didn't help him in displaying Mikhail's profile to him, but it was still capable of highlighting the person that the Analyze is being used upon, making it so that Mako could see the white outline of Mikhail as he moved frantically within the smoke trying to find Mako by chance.
[Silent Steps has been activated]
Mako used this to quietly circle back around to where the fighting had initially begun and exited the smoke cloud without alerting Mikhail who still thought that Mako was inside the smoke. However, as soon as he came out, Natasha shouted at the top of her lungs, alerting Mikhail of Mako's location.