The next wave of monthly games for Amazon Luna has been revealed, and if you’re a fan of first-person shooters, then you’re in for a treat. The headline act is Doom Eternal, or if you’d prefer your guns to be chatterboxes, you can also grab the delightfully weird High on Life. Luna members can also stream Star Wars Outlaws later this month for open-world action set in a galaxy far (far!) away, or they can explore the alien world of Avatar:…