The previous mission is a success, clearing Iran of any involvement with the Blacklist, but Sams escape is not as clean as they planned to be.
However, the tracker planted by Sam shows that the chemical weapon reached the US soil. While theyre making a plan, the vans that carry the bombs arrive in the train yard.
This means its a race against time for Sam, and he cant disarm the bombs without Briggs. Mission 7 is different than the previous missions because you also play as Briggs, but from a first-person perspective.
You cant find any collectibles while controlling him, hence you should follow the instructions in the Splinter Cell Blacklist collectibles guide if you dont want to miss any of them.
PREVENT A BLACKLIST ATTACK FROM UNLEASHING NERVE GAS ON THE PHILADELPHIA SUBWAY SYSTEM
Splinter Cell Blacklist Transit Yards Collectibles
Dead Drop Flash Drive
As soon as the mission starts head down, pass under the truck, and use the pipe to reach the balcony above the enemies.
At the end of the balcony you can find the Dead Drop collectible on a wooden crate. Make sure you get it before heading down.
High Value Target
After you disarm the first bomb theres a section where you play as Briggs. When youre back controlling Sam you have to go across the first train yard.
Theres a control tower in the yard where a sniper scouts the area. The sniper is actually the High Value Target youre looking for, so find a way inside the tower and bag & tag him, but do this before going over the fence since theres a checkpoint and you want to save your progress with the HVT.
The next yard is similar to the first one, because theres another tower with a sniper. When you traverse the area be aware that theres another sniper that can easily spot you.
Head inside the tower undetected to find the Splinter Cell Blacklist Laptop collectible. Hack it before disarming the bomb or you will miss it.