"Well done, Guardian." Zavala nods appreciatively. "Now that you're up to speed, challenge yourself with some more dangerous foes."

"Practice all week," he advises, "because during the weekends, you'll be able to earn high scores that will grant you rewards and buffs for the following week."

"We'll use a different operation to test you each week, so you'll have time to prepare your tactics. Keep track of your scores as you go," he concludes, "and show the whole Tower what you're made of."