From: Fort Wayne IN USA
HMAS Shropshire should not be available until October 1943, and she should have already received her 6/43 upgrade. Also, the London Class 6/43 upgrade has one of the aft 8" turrets removed. This did not happen historically. According to the Royal Australian Navy's web site, Shropshire still had 8x8" guns when she was in Australian service. Also, if you look in Jane's Fighting Ships of WWII (I assume someone has a copy handy), the pictures of HMS London dated 1946 clearly show that she still has four turrets.
It turns out that what I wrote was not completely correct. Devonshire and Sussex did have their after turrets removed; however, Devonshire's was not removed until 3/44, and Sussex was not so modified until 3/45 (According to Seekrieg 4, Sussex's TT were also removed). Another point; Shropshire's secondary battery was modified to be identical to London's (4x2 4" MK XVI as opposed to 4x1 4" MK V) in 1942. According to my information, Devonshire and Sussex never received this modification. I noticed that there is already a "London-Rebuild" class in the database, but it is not used in any scenario because London doesn't arrive until later, and all four ships follow the same upgrade path. In view of what happened IRL, however, it seems clear to me that there should be two upgrade paths for the class--one for London and Shropshire, and the other for Devonshire and Sussex.
"I know Japanese. He is very bad. And tricky. But we Americans too smart. We catch him and give him hell."
--Benny Sablan, crewman, USS Enterprise 12/7/41