Just Cause
50 Achievements
1,000
25-30h
All Story Missions Completed
Completed All Story Missions
125
How to unlock the All Story Missions Completed achievement in Just Cause - Definitive Guide
You will probably fail at it multiple times. I was stumped until I found the following videos, which are an excellent walkthrough. These videos give away the whole of the last mission, including the ending cutscene, so only watch if you are happy with that¬
I take no credit for the creation of the videos. Also, they are taken from the PC version of the game, but it is exactly the same as the Xbox 360 version (the only difference is the layout of the game's HUD).
All you have to do is complete the story mode. The last 3 missions can be fairly hard because the difficulty just seems to shoot up. So here are some tips for each of them:
Taking out the garbage Vol. 1 – Alright, you want this to be nice and easy so there are two things you can do. First, while you’re in your helicopter you can jump to an enemy helicopter from the one you’re in. Watch for the red arrow on the map and when it gets close by look for the button. Once you’re in it, fly to your mission area and destroy the enemy tank as fast as you can.
The other way is to jump down into the water and ride your boat to the beach. Once you’re there, clear out the area and grapple onto an enemy helicopter. You can do it the hard way by running all the way there, but there are a lot of tanks that’ll give you a hard time.
Taking out the garbage Vol. 2 – You’re going to steal a jet here and hunt down some cruise missiles. All you have to do is follow the missiles and destroy them. I have one suggestion; do not let your jet blow up. The next segment is bloody hard without the jet. So I suggest you to keep your jet alive until Vol. 3 so you don’t have to use a gyrocopter or steal a jet/helicopter.
Taking out the garbage Vol. 3 – You’ll have to catch up with el presidente’s airplane. All you have to do is use your jet to hang over the left side of his jet or above it and go into stunt position. Once you’re there, a button will show up that’ll allow you to jump to the plane. Once you’re in start taking out people. Eventually you’ll go into a sky diving contest with el presidente. You’ll have to plant an explosive on him. Dive down to him but you’ll have to slow down so you don’t pass him. When you get close to him, press to plant the explosive. This will take a few tries, but you’ll get a hang of it eventually.
For fuller walkthroughs, check these links.
https://guides.gamepressure.com/justcause/guide.asp?ID=1420
https://guides.gamepressure.com/justcause/guide.asp?ID=1421
https://guides.gamepressure.com/justcause/guide.asp?ID=1422