Xbox Game Pass giveth, and it taketh away in August. Fortunately, not too many games are going to be exiting the subscription service in the first half of August, as only four titles are on their way out on August 15. This month, you can say goodbye to Menace–which was available via Game Preview on PC,–Atlas Fallen, Aliens: Fireteam Elite, and Firewatch. As a reminder, Game Pass subscribers can save 20% on these titles before they leave, so if you…