I've seen the list of recommendations but I'm not sure what to expect from each one.
I'm specifically looking for a book that really goes into the specifics- numerous maps, battle plans, statistics, number of troops, supply lines etc.. I'm a little tired of reading the likes of "but the 3rd battalion was running out of supplies and could not advance". Which supplies? At what rate were they using up artillery shells? How long could they continue fighting for? How close was the nearest depot?
I recommend When Titans Clahsed by David Glantz and Jonathan M. House, a comprehensive account of the entire Eastern Front, from the start of Barbarossa to the Battle of Berlin, made with the latest declassified data from the Russian government and it has everything that you mentioned: maps, statistics, battle plans, the evolution of combat doctrines of both the Soviet Union and the Third Reich, Chains of Command etc
It sounds like you want Glantz's Stalingrad trilogy, which is misnamed, because he ended up having to split Volume 3 into two books, and it has a Companion book, so it is actually a pentology. I think that it might take longer to read than the actual battle lasted! In any case, as /u/FreeCapone already noted. Glantz is the guy for in-depth coverage of the Eastern Front from a pure military history perspective, and he has dozens of books, but Stalingrad is undoubtedly the one which goes into the most minute levels of detail, so sounds to be very much what you are asking for.