Be prepared for juggernauts at any time, so get used to pulling out your rifle or using flash bangs if they appear randomly. If you wait too long, the first juggernaut may come running down the first flight of stairs. Quickly get your weapons and prepare for the first Juggernaut.
50 cal and an Intervention with a thermal scope) on the tarp on the second platform. To easily complete this mission on any difficulty, have both players keep the starting machine gun M240B and equip one of the two available sniper rifles (Barrett. Pushing is dangerous, as juggernauts may appear around corners, but is required to complete the mission is a shorter amount of time.
There are two ways to fight: wait for them to come to you, or push forward. The juggernauts, when activated, will pursue you. This mission has no time limit, however the enemy will not wait for you to find them. Kill all fifteen juggernauts on the oil rig.