Mission 7: Lincoln Memorial
Reach the camera control booth to record Reed and Galliard's conversation.
This is straight shooting all the way to the camera control booth. No sneaking or anything involved--just run. Once there, hack the main controls to spy on Reed and Galliard. Cycle through the cameras to find the best angle that captures both parties and their conversation. When the audio gets fuzzy or if the icon turns red, the camera needs to be re-adjusted to keep the conversation clear.
Interrogate Galliard in the Memorial
When Grim calls Galliard to distract him, Sam gets the opportunity to catch Galliard by surprise and interrogate him. He's a tough nut to crack and will withstand some painful-looking punishment before he spills the whole can of beans. However, Galliard gets silenced forever before he delves into further details.
Catch the killer.
Chase down the killer on foot. Occasionally, some cop friends will get in the way and try to apprehend Sam, but unless you're playing on Realistic mode Sam can sprint past them. The long, exciting chase culminates in a glorious car explosion.
Hold out against Third Echelon until your transportation arrives.
Third Echelon squads have begun to zero in on Sam's position, leaving Sam pinned down while he waits for extraction. Run back up the steps and to the building on the right. Climb up to the second floor and set up camp here. Engage the enemy only if they decide to explore this section of the cafe; otherwise, stay put and wait for Grim to give the greenlight. Once help arrives, jump out the window back window and make a mad dash for the vehicle.