tbh Half-Life 2 is just as ineligible for those titles.
Obviously all of those things are opinions, and I was just making a joke.
Maybe not balanced weapon system, that wouldn't matter for a single player game but:
It's original, far more original than Black Ops will ever be, it has it's own story and it's own features other games don't and has been named by many game magazines and given awards for "Best Game of the Year, Best FPS of all time, ect."
so its no where near "JUST AS INELIGIBLE" for those titles, what game would you say fits those titles?
Edit: and I know I'm just a valve fanboy fighting off CoD fanboys, but oh well.