You need to improve the MM of the crusers and bb's with RADARS. They have to be the same, for excample 3 vs 3 or 2 vs 2 etc.
In the last games the MM puts my team 1 radar vs 3 and I m playing DD's mostly. I' m ok with radars but I HATE when the MM gives the enemy team more chances.
Please fix this ASAP.