Get to the power module and shut it down (part 2) | Mission 7: One Bullet A: CM Guide
Last update: 11 May 2016
Start off by searching the site where the vehicle has been, especially since the soldier with the rocket launcher should drop a full set of armor. Afterwards, make your way towards the main entrance, pictured above. Turn left, after O'Neal.
Soon you'll reach an unguarded area comprised of one large room and several smaller ones. The one pictured above hides the third Audio Log. When you're done searching through them, go to the double door where O'Neal should be waiting.
Go upstairs and take care of a group of armed scientists in the new area. Afterwards, approach O'Neal and listen to the details of the next objective.