These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
"Weird Al" Effect: The whole "fight and kill others like yourself in one off "missions" to earn points to advance ranks" seems like some sort of commentary on online first person shooters (and Grey is just as much of a jerk as a lot of FPS players). Thing is, the story dates from the mid 80s, Wolfenstein wasn't even 3D yet.