Take Advantage of the IS-7 line:

So if you dont already knoww, update 3.8 has put the entire IS-7 line on sale. The T-26 to the KV-1 and KV-1S are on sale for 50% off and the KV-85 to the IS-7 are 30% off. Take advantage of this great deal!

This is for Xbox One, but I would assume it would be the same for 360 and PS4 since the game is cross platform compatible.