Start the quest by speaking to Elan Rosh. Now that you are a guard, Rosh wants to test your abilities. The standard method for testing a guards' competency is to time how long it takes for them to deliver a message to the other guards. Rosh requests that you deliver a report he has to Burno in 5 minutes. After accepting the quest head straight east into Feather Plain. Continue going dead east and in the middle of the map is an outpost. Speak to Burno Gadol to receive your reward.