Guide the squad through the Soviet outpost without them getting killed:
Another Video from Experienced-Gamers.
**Possible Spoiler if you've not yet got this far in the game**
On the 11th level WMD you alternate between playing as an SR71 Blackbird navigator and your normal role as part of the Black Ops team, On your way to the Comms station you need to guide the Black Ops team through various checkpoints without any of them dying (including the character you play as). An easy way to get this to unlock is to set the difficulty to recruit. Listen to what you are being told over the radio so that you don't move the squad on the ground into the path of the enemy.
Tip 1: After you leave the safehouse via the rear entrance direct your squad at the 2 enemies nearby, simply place your marker over them, it will turn red, now press A and the squad will take them out,
Tip 2: When you are told to dig in, do so quickly otherwise your squad will come under fire and you'll all be shot..