You start this mission in a snowy forest alongside Captain Price armed with a silenced sniper. Follow Price as he makes his way through the forest, stop as a couple of jeeps go by, Price basically guides you through the forest so keep following him and listening to what he says.
Price will tell you to take out one of the soldiers while he does the other, follow him further and you then need to kill the soldier and dog on the left, he will again deal with the others. Keep going forward and an armoured vehicle will arrive, follow Price to hide in the bushes until you are clear of it. Next you will see an enemy patrol of soldiers looking for you, again stay in the bushes with Price and the danger will soon pass.
Move further on and there are 3 more soldiers to be dealt with and then another group of 3 plus a dog, follow Price's instructions to take these out. There will then be another group that you spot, don't attack these yet, instead hold still until Price initiates the next move.
After following his instructions and making it to the top of a hill, follow him as he slides down. Move over to the supply box and pick up a different gun before moving up the road with Price and taking cover behind the jeep. Your Predator missiles will now be online and they are there for you to use in intervals, there is a 20-30 second wait between each missile so you need to use them to maximum effect. Eliminate as many enemies as possible with each one, while waiting for your next missile to become available you can take out any that you get the chance to with your normal weapons.
Move forward and more soldiers will appear so its time to clear them again with your Predators, once again get into cover and between missiles shoot down those that you get the opportunity to. After clearing this group follow Price and when he stops get some cover again to allow you to use your Predator's to obliterate the enemy forces within the submarine base, make sure to take out the enemy chopper before targeting ground soldiers. Push through the base and take out any remaining soldiers you encounter between missiles until Price makes his way towards the submarine, you now have to give him cover so get onto the roof of the building to the left. When up there use the cover to fire more missiles to clear the oncoming soldiers and again clear as many as you can in between with your gun. Once the area is cleared of hostiles a nuclear missile will soon fire from the submarine and this results in the end of the level.
