General info about the mission
The thirty-third mission in Metal Gear Solid V is another repeated mission. The objectives are identical as in the ninth mission in the game. You will find their description in the walkthrough to this mission. The changes in Extreme version are not so big. First of all, you have to bare in mind that enemy machines will have stronger armor and will deal more damage. Moreover, you can't use Reflex Mode and Chicken Hat.
If you plan to play this mission to eliminate enemy machines, you can select any time of the day. Choose D-Horse or D-Walker. D-Horse will allow you to quickly move from one point to another and D-Walker will make it easier for you to eliminate vehicles (if you want to do that of course and if you have strong weapons for D-Walker). When completing the mission the second time, take D-Dog with you. It will make it easier for you to find all the prisoners.
It is necessary that you take the best rocket launcher that you can with you (before you start the mission, check if you can produce a better launcher in Mother Base). Besides that, you should have some landmines or large obstacles to stop the vehicles.
The main objectives are the same as in the original version of the mission. Below, you will find a list of tips considering the modifications that affect the level of difficulty.
You should complete the most important objectives in the mission, connected with eliminating enemy vehicles, staying near Yakho Oboo Supply Outpost. All the machines appear next to the base and also the jeep and the truck will go past the outpost.
Fulton the machines using CARGO 2 upgrade, which you should already have. The most important thing is of course placing obstacles to stop the vehicles. At this stage of the game, you should have good landmines. They will be enough, if you use them properly. If a vehicle goes past an obstacle, use rocket launcher on it. You have to remember that enemy machines in this mission have stronger armor, so even if you have a good rocket launcher, you may need 2 or 3 missiles to destroy a vehicle (the same for the gunship flying over the mission area - don't let it escape).