MW4 DMZ’s Quiet challenge asks you to loot 10 crates in the Grid while sustaining zero damage. As the Grid is a highly secured location, it becomes difficult to complete the challenge if you are unaware of the location. However, you can make it easier by starting the Operation Grid Assault story mission, which takes you straight to the Grid.
How to Complete the Quiet Challenge
In order to complete the Quiet challenge for MW4 DMZ, you have to loot 10 crates in the Grid while taking zero damage. The best way to complete this goal is through the start of the Operation Grid Assault story mission, because this will allow you to go straight to the Grid and not spend time fighting your way there in an ordinary game. You can complete this challenge solo or with a team. However, if you’re playing with a friend, make sure to turn off squad fill before starting the mission. This prevents a random teammate from opening containers and interfering with your progress.
How to Reach the Grid

Launch the Operation Grid Assault mission and complete all the objectives till the time you reach the Grid. It is not necessary to be concerned that other teams might beat you to the Grid, since you automatically spawn at the location. On your way to the starting location, you will come across a couple of enemies. You need not be worried about being hurt by these enemies because your progress for completing the challenge hasn’t begun yet. While making your way through the buildings, use a combat knife to kill the enemies silently. If you choose to use a gun instead, make sure that you install a suppressor.
How to Loot 10 Containers Without Taking Damage

At the point when you arrive at the subsequent lift, climb up and go into the room which is full of enemies. The quantity of enemies here can go from 10 to 15, so clear them out first. This is a solo challenge; however, it is more fun to have somebody assist you with annihilating the enemies. After that, discover the things that can be opened: filing cabinets and packs. You have to loot 10 of them without getting hit.
In the event that you are performing the challenge with your teammate, request that your companion doesn’t open any containers before you end the challenge. This is significant since, in any case, your development won’t be counted, and you should discover an alternate pack.
However, your partner can continue slaughtering the enemies while you are concentrating on opening the packs. In this way, it will be simpler for you to finish the challenge without taking any harm. Once you have finished 10 packs, the challenge is over.

