Essentially get the Lockpick, Reinforced Knife and Rope Ascender:
Lockpick - merchant in Paititi after completing side mission Takiy’s Dice.
Costs 2800 Gold Pieces.
Reinforced Knife - merchant at the market square of Paititi. Called “Knife Upgrade” in the merchant’s inventory. Costs 2900 Gold Pieces.
Rope Ascender - merchant in Paititi after completing side mission Takiy’s Dice.. Costs 3300 Gold Pieces.
Guides here:http://www.powerpyx.com/shadow-of-the-tomb-raider-how-to-get...http://www.powerpyx.com/shadow-of-the-tomb-raider-how-to-get...http://www.powerpyx.com/shadow-of-the-tomb-raider-how-to-get...