If you're wondering whether you go through an endless plain of white snow like the N64 version, this is not the case. It's worth mentioning that you're guided with a compass and a circle mark. Also enemies are marked in red on the radar and it's also on a map. So really rely on them to make it through the level.
This is Not Like Christmas[edit]
It's better for you to decide as you go through the level, you can choose to silence the men or go through guns blazing. If you're more interest in location spots, there's at least two bridges, one further a way and next close to the ground. Once you reach the mark, you'll automatically go to a cutscene, with an EMP blast and a helicopter crashing down on you! Not a best way to celebrate Christmas.
Surviving Through The Snow[edit]
You should be thankful it's only a game and without James Bond around, what would've happen to the rest of the story? You now have to go through the helicopter crash scene, followed by a long trail with a tall bridge in the background. Don't forget to shoot the enemies despite trying to avoid a gunfight.
Die Hard Vendetta[edit]
There's now a point in which you have to survive through a gunfight between the Russian soldiers and Janus' henchmen. The safest bet really is to start on the right side where the open containment and a house is to clear a first group of enemies so you won't be shot in the back. Then go on the other side of the fire to get to into the building.
Sniping and Shooting[edit]
You should go through the vent now to the survivors. Again you can choose how you approach. The greater danger is your behind the fire area and there's enemy snipers at the other end. Snipe them down and the other guards will open the door on the left side on where you are.
Snipe and Errors[edit]
The last part seriously needs to be clear of enemies before you go into the bunker. Use your sniper rifle to search for any enemies in front of you. Once your rifle runs out, it will take many tries to get through as there's more enemies to contend with before you get into the bunker. It's worth mentioning that the sniper has no zoom adjustment so be wise in picking the distance between you and the enemies.
Agent[edit]
After you survive the helicopter crash, at that point, you should look out for big suitcases with locks. So look thoroughly and shoot them open to complete the additional objective.