HI, I'm playing GW, I killed 5 different commanders and each time they stayed near their spawn. No expension. It was very easy. I'm playing the normal difficulty. Is this the intented behavior? Seems much more easier than before. EDIT: attached is an image of the last boss (orange) after 15 mn of gameplay. It did not build an army, did not expend. I did not attacked it. IMHO there is a bug...
