Objective: Extract the defector and intel.
Your incendiary SPAS-12 is the weapon of choice here since you'll be in CQB (close-quarter battle). Kill 10 NVAs with this weapon to unlock 'The Dragon Within' achievement. Fight your way to the safe room. Continue clearing the war room until you breach the door in the hallway.
Objective: Get to the LZ
After meeting Reznov and before going outside, check the little room along the hallway to the right to find the first intel of the mission.
Defector Intel 1/3
Exit and go to the next objective point. Take the radio from the soldier and request for a fire support on the buildings nearby. Jump down and advance while clearing the buildings.
Objective: Fight to the LZ
On the second corner where the road turns to the right, enter the house ahead and find the intel on the table. Check the video to know its location faster.
Defector Intel 2/3
Continue along the road; it will be a good idea to move from house to house to have lots of cover. Once the tank appears, wait for it to stop moving and order fire support. Push the NVAs back then order a fire support on the marked building to update the objective.
Objective: Destroy the ZSU gun emplacement
Follow Woods then help him open the door. Once inside the apartment, fight your way out until you get outside. Plant the charge on the ceiling where the ZSU is located then detonate it.
As for the last intel, continue ahead to reach the LZ. Enter the destroyed building across the stairs to find it on the table.
Defector Intel 3/3
Dig in and wait for the enemy forces. You can man the MGs if you want. Just hold your position and keep repelling their attack until the enemy tank arrives. When that happens, quickly leave your position and take cover inside the building on the second floor. Call in air support once prompted, then quickly make your way to the boat before time runs out.