This is the final Strikeforce Mission in the game, and your goal is to kill Tian Zhao. At the beginning, a scene plays out where Zhao's VTOL is shot down. You need to fight your way to the VTOL, hack through its defenses to open it up, and then eliminate Zhao for good. All you have available, as far as units are concerned, are infantry.
Since this is a simple point A to point B, with no other objectives, the mission is fairly straightforward. You'll encounter plenty of troops, as well as some ASDs and even some turrets. Not far into the mission, you'll come across a spot with a lot of ASDs, so take the path on the right (there's a turret here) to get a vantage point and use grenades to help get rid of them.
When you get to Zhao's VTOL, there will be two turrets placed in front of it, so disable them both. Place the EMPs to disable the VTOL's defenses and defend them until they have succeeded, noting that it's only infantry fighting you at this point. Once it has been hacked, approach the door for a short scene, where you can fire your weapon to kill Zhao and end the mission.