The Game of Lives (The Mortality Doctrine, Book Three)

In the third mortality doctrine book, the good guys become bad guys, then good guys, then who knows what. The bad guy loses control, then saves the good guys, only to be upset and try to thwart their plan. It gets confusing. It is also unclear what the motives are of some of the characters.
The mortality doctrine provides "immortality" by allowing people to live some of their lives in the real world and some in the virtual world. It would seem to have a bunch of holes in it. What would happen if the real world population spiraled beyond carrying capacity? Or what if the "tangent" population got so great that there not enough bodies to inhabit? Or what if some of the "real" people decided to just pull the plug on the virtual world? And what if people just decide they don't like this immortality thing? Lots of things to explore. But, most of the time is just spent with people fighting and getting saved at the last minute. In the end, the real world is saved from the virtual and makes a quick trip back to normalcy. (Really? Wouldn't there be a call to ban the virtual world after all that had happened?) Could artificial intelligence one day decide it did not want to be subservient and take over our world? Alas, this was a thriller, leaving the metaphysical as a backdrop. The action is nonstop, even as the character development is lacking. (The character of Gabby seems especially undeveloped.)