White Wall Secondary Base Assult-

You didn't realize a high prioity target was on scene.
Your squad did a fine job of apprehending him. You just finished questioning him. 
It seems that there is an underground base on 16th and Titan street.

You're going sending your squad there.
You know to be prepared the HPT told us only that 
"your rifle might as well be aimed at your head if you step foot in there".
You gotta take this down. With this you will bring White Wall to its knees.
There's a high chance that reinforcements will be there after your squad cleans house.