In this mission you must destroy four chests containing rockets. They are placed in a well-guarded base, which must be infiltrated by you.
First, eliminate snipers and soldiers that stations in the visible places.
You can see a tower that stands in the center of the base. The tower is used for alarms and calls for support. Shoot the electric control box. Thanks to that, even if you are detected, the mission won't be that difficult because the helicopter won't come here.
When you find the chest, destroy it by using a fragmentation grenade or C4 charge. The appropriate button will appear in the bottom left corner. If you use a grenade, you can simply throw it by using that button. But if you want to use C4 charge, press the button to place the charge and then hold the same button to detonate it.
The mission ends when the four chests are destroyed. If you want to use a helicopter to leave the battlefield, first, destroy the surface-to-air rocket launcher presented on the picture below.