The Mountain Master Heist Add-on for PAYDAY 2 has 12 achievements.
Complete the Mountain Master job on the Normal difficulty or above.
Complete the Mountain Master job on the Hard difficulty or above.
Complete the Mountain Master job on the Very Hard difficulty or above.
Complete the Mountain Master job on the OVERKILL difficulty or above.
Complete the Mountain Master job on the Mayhem difficulty or above.
Complete the Mountain Master job on the Death Wish difficulty or above.
Complete the Mountain Master job on the Death Sentence difficulty.
Complete the Mountain Master job on the Death Sentence difficulty with the One Down mechanic activated.
In the Mountain Master job on the OVERKILL difficulty or above with each crew member wearing a variant of the dragon bomber suit, kill Yufu Wang in loud using only flamethrowers and steal his mask. Unlocks the "Mountain Master Crown" mask.
In the Mountain Master job on the OVERKILL difficulty or above, find and press the 3 buttons on the roof within 2 minutes of activating the timer, while in stealth.
Collect and secure the tea sets from all heists in the City of Gold campaign. Unlocks the "Laohu Dashi" Outfit.
In the Mountain Master job on the Very Hard difficulty or above, find someone in need of a lift, and help him to the helicopter, while playing in loud.