This is a story related achievement and cannot be missed.
You'll have to get inside the building with the MG Turret on one side. You can hug the right wall and rush through the front or you can go down the side gate. Once there use the MG (go prone if on veteran when needed to recover from inevitable bullets) to light up the opposite side.
Then when escaping the building go through the door on the bottom floor at the back. Here you'll soon have to take out some tanks with a Javelin your teammates will drop. I'd clear the area first.
Finally after running through the market you'll have to defend the 'War Pig' - here the objective will be to not let any enemies get too close to the tank. A safe way to ensure this is to use the back of the tank as cover and pop out people who come from the left-side and from the back.