Metal Gear Solid V: The Phantom Pain Walkthrough – Mission 34: [Extreme] Backup, Backdown

Make sure to equip yourself accordingly, as you’ll need plenty of explosives. If your plan involves capturing the vehicles instead of destroying them, you’ll also want decoys and other tools to stop them. To complete this mission, your primary goal is to eliminate a single vehicle, which shouldn’t be too challenging. Bring along a launcher and track down any vehicles that appear, then blow them up. Keep in mind that, since this is an Extreme mission, the vehicles will require several shots to take down, but with persistence, they will eventually be destroyed.

Once you've destroyed one vehicle, you can simply find a hiding spot and wait for the timer to run out, allowing you to extract yourself and complete the objective. Most vehicles (with the exception of the jeep containing the prisoner) travel from South to North. If you set up an ambush just below or at the Northern checkpoint, you can camp there and disable the vehicles as they approach. However, be aware that the last two APCs may arrive in the final minute, so it might be necessary to launch your ambush a bit earlier to ensure you can take them out in time.