knights and large group of crawlers in the immediate area. Proceed further into the jungle when it is clear and follow the path to the left and up the ramp.  Continue along the winding path here until you encounter a group of three crawlers and a knight. Deal with them before continuing. When you reach the group of marines under fire, continue down the slope and help them repel the crawlers, knights and watchers in the open area beyond their cover position. When it gets quite, hop the marine's defenses and clear out any remaining enemies before proceeding to the structure at the afar end of the area. As you approach a knight, a pair of watchers and another small group of crawlers will ambush you. During this encounter, a pair of Promethean laser emplacements may also be activated, so if they do, destroy them as well. Once everything is dead, head for the structure. Place Cortana into the socket on the pillar to the right of the door and then defend the area for a few moments whilst she does her thing. You will have to fight off a healthy number of crawlers and a few knights, any remaining marines will help you out and there is also a gun turret here to make things easier if you wish to use it. Once time is up, Cortana will let you know she is finished and the door will open, giving you access to the next area. We'll be in