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Ultimatum (2 videos)
In this level you have to first save Griggs from the enemy and then progress through the base to gain access to the missile silo.
This level incorporates a little bit of stealth when trying to rescue Griggs. Find a route through the enemies so that you only have to use your knife.
The video also has some good advice on how to defeat the 2 trucks at the end of the level. Throw all of your C4 at the trucks and get some to stick on the engines then get to a safe distance and blow them sky high. You can take out all the enemy in one detonation.
All In (2 videos)
In this level you have to storm the missile silo to gain access to the base underneath.
You can defeat the first tank by following the fence left outside and around the base. There is a pickup truck next to a gate. Plant C4 on the gate and blow a hole in it. Pop a smoke grenade and wait for the tank to stop near the hole toss or plant some C4 to destroy the tank.
The next area has two tanks but there is an easy way to acquire a Javelin Missile launcher. Check out the video for it's location or you can repeat the smoke and C4 method.
No Fighting in the War Room (4 videos)
In this level you have to make your way through the underground base to get to the missile control room and input the abort codes.
Keep moving and killing. You start out with 9 minutes and if you can get to the next check point fast enough you will be able to grab the checkpoint. If you move slower than one minute per checkpoint the game will not save your progress. This is to ensure that you have enough time left to finish the objective/level.
Stick with the M4A1 and the G36C for extra ammo and remember to use your grenade launcher if you have one equipped.**
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