Mission 9: Crash
Intel #25: When you are on the ground and in control, walk directly forward to a bunch of crates and in the centre of them will be the intel.
Intel #26: When you are inside the caves, after falling through the ice, you will come across this laptop as soon as you come across the first set of enemies. Look to the right, on the far side an it will be beside an enemy standing there.
Intel #27: After the sniper sequence and after you have a chat after climbing out of the water, go to the right side of the plane wreckage and the laptop will be sitting in the snow.