This is a Batmobile battle, and you will have to face off against Deathstroke in a suped-up tank (that has 360 degrees of vision), and several Cobra Drones.
As you may know by now, Cobra Drones can only be destroyed by sneaking up on them and shooting them in the back with the Batmobile’s 60mm Cannon. It’s imperative that you take all of the Drones out first before beginning your assault on Deathstroke’s tank.
It will make the battle much easier, even to the point where you can complete the fight without taking any damage whatsoever.
One upgrade you should definitely have to make the entire process much easier is the 60mm Cannon- Cobra Lure upgrade found under the Batmobile Weapons skill tree.
Since you can only attack these vehicles from behind, being able to direct them to an area opposite from Batman will make taking these annoying (and otherwise invincible) drones out a much simpler task.
You can probably even lure all of them to the same location reducing the need to have to sneak around Deathstroke. Once they’re all gone it’s time to go after your primary target.
The easiest way to defeat Deathstroke’s tank, and to overcome his full range of vision, is to fight him around corners. There is a building located in the northwest of Miagani Island that has two small passageways perfect for this strategy.
Simply lure Deathstroke over here by grabbing his attention. Bring him to the building, shoot him with your 60mm cannon then duck into a passageway and wait for him to turn the corner. When he does, rinse and repeat.
