Steal the attack plans of the Nerius Commander and Tactician. These can be found on a table in the tent where the Nerius Tactician spawns ( 932, -0, -326 ) Copy/waypoint 932, -0, -326.
Note: You do not need to kill the tactician or other mobs at this time. They are the same color as the table so they may be hard to see (The next quest in the series will require you to kill them.)