(Credit goes to crysisdate for the video he uploaded on his YouTube channel)
Hi all, I just thought I would point out that on the mission "Onslaught" there is a secondary objective called "Call an airstrike on the munition dump" you have to have a slight elevated advantage so you can point your binoculars towards the tower crysisgate shows in his YouTube upload. You will notice that there is a birds nest watch tower that you have to climb up and then look at the tower across the water and call in the airstrike, long story short I destroyed the birds nest with the tank and I was standing on flat ground for ages trying to look at the munition dump with no luck so I watched crysisgate's video and I reloaded the checkpoint climbed the tower and called in the airstrike on the munition dump. Just thought I would point it out just incase anybody else got stuck. Hope this helps guys.