The Germans are encircleing Stalingrad, and Stalin has ordered that it must not fall at any cost. The politicol officer has given you a mission. Hunt down and kill the German parahuman "hounds" before they have a chance to wipe the Special Directive here. If you suceed, your lives will be safer, you may even be rewarded. If you don't, well you know the consequences of refusing orders.
Allied Command is planning the big push across the Rhine into the heart of Germany. It has been decided that the time is now to pull out certain intelligence assets from the region. Your Talent squad has been chosen to make the pick up. Insertion will not be the problem, it's getting back through all those miles of desperate German resistance that is. Good luck soldier, you'll need it.
In Amber Clad made a blind jump following a Covenant cruiser on unknown trajectory. They came out of hyperspace in orbit of another Forerunner Halo. Captain Keyes gave the orders to disrupt Covenant operations, and if possible capture their Prophet of Regret. The Master Chief got the capture mission. Your team drew the "cakewalk" assignment of retrieving some Index from a library. Sounds easy, but it never is. Based on the video game series.