Marines aren't what made Aliens a badass movie. It was the characters who happened to be marines. Oh, and good storytelling and film-making. Shoehorning guys with pulse rifles into the series again won't automatically make for a good movie. Any teenager could write this sort of fan-fiction. I'm perfectly fine with any direction at this point as long as we get a great movie. Covenant was a great movie, but apparently because it didn't make as much money as expected it's a turkey. Sucks.