You and your team have officially failed at extracting Paez. The helicopter that was supposed to get him has been repelled by enemy RPGs, and the enemy soldiers littering the town have succeeded in scaring Paez away from meeting with your team of Ghosts. HQ will radio and tell you that he has holed himself up in a hideout across the town. You will need to hunt him down and extract that valuable intel from him. Regroup with your team by the sliding door in the building ahead. You will see a white circle in front of the door. Stand in the white circle to initiate a breaching sequence. Hit the action button to climb the ladder on the other side of the door.
Proceed ahead, back out into the city’s streets. Toss a sensor grenade out near the building ahead to reveal four enemies hiding in the building. Use the ammo crate nearby to restock on ammo and sensors before stacking up at the white circle in front of the door. Hit the A/X button to initiate another breaching sequence, this one with enemies inside of the building. As you kick through the door, time will slow down allowing you to get a better bead on your enemies. Begin at the left side of the room, shooting the enemy stowed away in the left-hand corner. After he falls, sweep your view to the right in case any of your teammates haven’t taken out the baddies over there. Most likely, the enemies will already be dead, but it can’t hurt to be sure. When the room is cleared, head upstairs and proceed through the door.
The door will take you out into the streets of the downtown city. You won’t be able to get through this area with stealth, so feel free to bring out the big guns like the LMG. When the word “Engaged” appears in red on top of the screen, you will know that you have no choice but to fight the enemies here. Sprint to cover behind the white box ahead to the right. Toss a sensor grenade out into the crowd so that you can distinguish the enemies from civilians. Check the raised walkway ahead to find the first group of enemies. Toss a frag grenade up on the walkway, as the enemies will be kind of grouped together. With luck and skill, you can take out the group on the walkway with the grenade. Otherwise, it will at least flush out the rest of the enemies, at which point you can pick them off with your rifle.
When all of the enemies are dead, leave your cover and proceed forward down the streets. Advance down the adjoining alley to reach the next area. As you move down the alley, a pickup truck will cut you off and shoot in your direction. Take cover to the right side of the alley. You will have to flank around the back of the truck, as there is simply no way that you will be able to advance on the pickup truck from head on. You will have to use the game’s cover swap ability to zigzag from the left to the right and back to the left again, dodging fire between both sides of the street. Once you reach the final cover point, sprint off to the right and climb up the steps. Take cover behind the crates to the left of the path and get a bead on the gunner in the pickup truck. Look up over the crates and cap him right in the head. Note that it actually is possible to destroy the pickup truck without flanking it by tossing a grenade out from cover, but this is much more dangerous and won’t really give you anything that flanking it won’t.