-This is not a final decision, simply an input-
If you look at the dates of posts, there are very few posted.
Long periods between them. If we have sections posts would be spread very thin, leaving some sections completely empty.
I can appreciate and respect that some sections have far less posts than others, due to how long the site has been running for and with the amount of members the site currently has, of course it's going to be difficult.
In time, the rise of members who join this site, having those subsections for each COD title would be an incentive for members to start posting more. This applies to all games that may need subsections.
Only time will tell, I guess.