The The Charlie Santa Heist Title update for PAYDAY 2 has 17 achievements.
In the GO Bank or the Four Stores Jobs, find and pick up the hidden Marine Trophy five times. Unlocks "The Marine" mask.
In the GO Bank job, complete the heist having secured all bags of cash via the sewers on the OVERKILL difficulty or above.
Complete the GO Bank job on the Death Sentence difficulty.
Complete the GO Bank job on the Normal difficulty or above.
Complete the GO Bank job on the Hard difficulty or above.
Complete the GO Bank job on the Very Hard difficulty or above.
Complete the GO Bank job on the OVERKILL difficulty or above.
In the GO Bank job, complete the heist without the alarm going off and without killing any civilians on the OVERKILL difficulty or above.
Complete the GO Bank job on the Death Sentence difficulty with the One Down mechanic activated.
Complete the GO Bank job on the Mayhem difficulty or above.
Complete the GO Bank job on the Death Wish difficulty or above.
In the GO Bank job, put at least 4 body bags under the Christmas tree.
In the GO Bank job, leave a mark on the bank logo.
In the GO Bank job, have the plane pick up all bags of cash with the skyhook.
In the GO Bank job, complete the heist without having the alarm go off at any point.
In the GO Bank job, complete the heist without using your primary weapon on the OVERKILL difficulty or above.
Equip the "Happy Santa" mask.