The corridor was poorly lit, somehow the NOD seemed to like this, but it worked to Sin's favour as it left plenty of shadows and inclines of darkness.
As the gunfight erupted around her, Sin sank into one of the nearby shadows, and rose up in a similarly poorly lit corridor not too far away, in fact just the right distance so she could flank the NOD from here.
After checking to ensure that nobody was behind her, she tossed a grenade into the NOD troopers and began shooting, popping into and out of shadows as they turned to see their new attackers. Sin loved the confusion and casualties she was causing
