Hack the cameras in the parking lot and inside the building to locate all the guards (two on the balcony and eight others in the perimeter). Use the explosives in the environment to kill as many guards as possible. Two cars will arrive after guards have been killed , bringing in eight more enemies. If your Hacking skill is high enough, use steam vents and other hackable items to take them out in the parking lot before they can exit their cars. You can also shoot them as soon as they exit the cars from a vantage point on the second floor in the building. When all enemies are dead, go to the third floor. Access the hacking point by the door at the top of the stairs to unlock the door where you will find Jackson.
