Way to unlock: You need to complete Main mission 11 (Casing the Jewel Store) and select the smart variant of the heist towards its end. After you receive the second message from Lester, there will appear the Hs icon on the world map, which symbolizes a truck driving moving the streets of Los Santos.
Playable characters: Michael
Additional information: One of the things that sets apart this mission from the other ones is that its starting point keeps moving around. Depending on the decision that you have taken, you will either have to deliver the entire van to the plant, or the grenade case only. The only obstacle in this mission is that you will need to lose a police pursuit.
To start this mission, you need to come close to the van on its route along the highways of Los Santos, to the airport and back. The mission will start automatically, as soon as you come close enough to the van.
There are two different ways in which you can obtain the cargo. The first variant assumes that you steal the van itself. In this case, you can shot the driver or get in his way, pull him out of the van and drive away quickly.
The second variant assumes that you destroy the back gate in the van. Start shooting during the drive, and to the extent it is possible, use some better king of weapon. After you destroy the gate, the grenade case will fall out into the street. Stop the car, run up to the case quickly and pick up the case. I recommend this variant, because it is one of the requirements for the 100% completion of this mission.
Towards the end of this mission, you will have to handle a police pursuit and it is going to be easier to escape if you have followed the second variant, because you will still be in your own car. If you have stolen the van, just like in the previous mission, leave it under the bridge and, if you have stolen the case, enter the plant and drop it after you enter a small storage area.
Rewards for the completion of the mission: none
Requirements for the completion of the mission in 100%:
- Loose Cargo - You need to obtain the cargo by destroying the back gate of the van.