Secrets of Daqing Oilfields v1.1 Difficulty Level 2 out of 7: Cover from fire: 3 out of 7: Worth the effort: 4 out of 7: #4:Good spot to nail the enemy as he rushes to take the flag. This is particularly a good one for nailing armor at the flag area or choppers hovering to take the flag. Climb the silo then jump onto the roof that simple. Onto #5