Well then lets think about this logically.
If Ascension happened after the events of Moon, as your theory points out, and the events of "Five" and Ascension were unfolding at the same time (which is post Moon events), you seem to forget that the earth was Nuked. And if this is the case, how can the events of "Five" even happen at this point. "Five" takes place in the Pentagon, not a nuclear bomb shelter so if this was the case there wouldn't have even been a "Five" in the first place.
Second hole in your theory is that the events of Call of the dead happen Post-Ascension (which in your theory is Post-Moon). Now simple question, if the world was nuked why would there have been a crew of actors and a director in Siberia making a movie for a post-apocalyptic world? Wouldn't they have died as well?
The third hole is that this would now make Shangri-la the actual last map they were on in Black ops. And of course the problem with that is, Richtofen needed the focusing stone to power the vril-generator. Now if this was the reality, how could he have done the events on Moon, IF he didn't even have the necessary materials? See what I'm saying mate?
well.. if you know what DEFCON means.. DEFCON 1 means nuclear war is emminent.. so maybe ascension is after moon, considering Five can be at DEFCON 1 (I just tought I had to put it out there, some of you may have forgotten about it).