The plot's a little unclear, at least as far as I read through it. The 'Stinger' guy had some deal with some group, where he'd bring saps like the player to the facility to get eaten by the fly-men...but who'd make that deal? I mean, how'd he not think this was weird, 'bring your friends to the creepy abandoned lab for us, we promise it's legit'
So clearly when he got tired of that, the flies killed him but...who was pulling those strings? Were the bugs themselves intelligent enough to swipe someone's phone and pretend to be actual people?
...'Solving food shortages', with fruit flies...I know they're common lab animals, and they're probably just testing the tech, though why choose a fly? I mean, rats are also lab animals, you'd figure that those would be more feasible if you're going to use it for food later.
Oh, well. Great, and I want to see what happens next really bad.