17. Story - Research Base
Survival Caches: 3
Scorched Earth - Disrupt Trinity's operations by destroying their fuel tanks
Enter the cave and take the high ground as it's faster. Keep following the path until you exit the cave.
Tracking Down Trinity - Follow Sophia's path to the Trinity base
Follow the linear path until you get a cutscene.
Tracking Down Trinity - Search for an alternate path up on the cliff
After the cutscene, climb a mountain and cross a body of water with a log. Take the first left before the objective beacon to get SURVIVAL CACHE 1/3 at the dead end.
Tracking Down Trinity - Follow the tracks up the mountain
Follow the tracks to an open area.
Tracking Down Trinity - Find your way through the forest to the Trinity base
Take out the guards in this area and then blow up the barrels by FUEL TANK 1/4 to destroy it. Head to the objective beacon and kill the guards in the area. ARCHIVIST MAP is located to the left of the wrecked snow plow by the objective beacon.
Climb up using climbing arrows where you'll kill 2 guards. Hug the left wall until you come across a bridge with a roof. Jump over a bridge's gap to collect SURVIVAL CACHE 2/3. buried in the snow. on the right side. FUEL TANK 2/4 will be loaded on the snow vehicle that is turned on near the objective beacon and MURAL 1/1 will be to the wall right of the objective beacon. Crawl below the wall, collect STAMP (RELIC 1/3) to the left, and light the Weather Station Base Camp.
Jump underwater where you can get another water finisher, if you still need one, and keep swimming until you get to the farther exit. STRONGBOX 1/2 will be to the left. Continue until you see a pair of guards in front of you and a trio to your left. Take a right here to find STRONGBOX 2/2. To the left, where the trio was located, is FUEL TANK 3/4. Get behind the fuel tanks you just blew and face Lara in the direction of the fuel tanks. Turn 90 degrees to the left and head to the trees. Turn right and hug this side of the map until you reach SURVIVAL CACHE 3/3 which is near a tree near the edge of the cliff.
Climb up the stairs at the objective beacon.
Tracking Down Trinity - Enter the Weather Station
At the top of the stairs, THE ORDEAL (DOCUMENT 1/4) will be to the left of a door and a sign with a wrench and hammer. Circle around the base of this structure and collect RELIQUARY PENDANT (RELIC 2/3). Examine the name on the back to earn more XP. Head to the objective beacon, climb up the ladder, and grab ENGRAVED CASING (RELIC 3/3) on the outside of the weather station. Examine the words on it to earn more XP.
Tracking Down Trinity - Search the Weather Station
Go inside and THE STRENGTH OF FAITH (DOCUMENT 2/4) will be across the room of a white projector screen. Collect it and unlock:
Unlocked by 2,106 tracked gamers (41% - TA Ratio = 1.56)
Once this achievement unlocks, no further collectibles need to be picked up on the Xbox 360 version. However, the walkthrough will still list the remaining ones.
Enter the room to the left of the screen and grab DANGER (DOCUMENT 3/4) on a table. Climb up the ladder and trigger a cutscene.
Save Jonah - Enter the Prison Block
Follow the path until you reach a water tower with the second guard. Once you're on the water tower, look down to see FUEL TANK 4/4 with some barrels to its left. An EXPLORER SATCHEL is on that same water tower. Zip line down.
Save Jonah - Find Jonah in the Prison Block
Turn around and head down the stairs behind you to collect PROTECTOR (DOCUMENT 4/4) on some crates.
Climb back up and continue down the hallway for a cutscene and unlock:
Unlocked by 3,526 tracked gamers (68% - TA Ratio = 1.20)
Protector - Repel the Trinity attackers
Rest at the Soviet Facility Base Camp. Continue into the building and kill the soldiers in your path. Eventually, you'll be underwater and can get a water finisher, but you'll have to emerge and kill the rest of the soldiers. Don't stay up for too long or the soldiers will gun you down. Lara will mention when you're down to the last guard. Once all the guards are dead, watch the cutscenes and unlock:
Unlocked by 3,508 tracked gamers (68% - TA Ratio = 1.21)
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