I have my personal stats record that im taking weekly since 15/12/2015 because servers was crashing a lot ... If you look the evolution of (difference between the percentage of map more prefered by people) you can see (well, I do) server tends to have an equal proportion for each map when server is working good . When the server crash more than normal that proportion changes making big differences between Op Blue Pearl (last map) and karkand which is the first map of rotation tends to grow his percentage .
The day I made this post (11/12/2015) server was crashing much more than normal
http://nrns-games.com/index.php?topic=7419.0If you look the screenshot of 15/12 , first one is very close today screenshot so is crashing very often again... I just played 1 hour and crashed 2 times .So dont know what has changed since proportion between maps was equal 10 days ago and now , or what was changed around 11/12 and 15/12 .
If something has been added recently , like scripts or something has been changed has to be the reason or have to be related .