If you think Russia is doing okay then why did they even start mobilisation at all?, surely the hasty mobilisation is a sign that the war is not going the way t

If you think Russia is doing okay then why did they even start mobilisation at all?, surely the hasty mobilisation is a sign that the war is not going the way that they expect. The tanks that they are sending don't even use the same ammo, nor the same amount of tankers that the rest of the tanks that Russia uses. Thinks have to be going truely poorly for them to breaking them out.