My uprated StuG has camo-trained crew (all 4) and the camo net installed. They are all up to 52-54% now and I'm seeing quite an improvement in the range I'm getting detected. I've had scouts drive right past me, but if my barrel is sticking out of the bushes they can see me from a mile away. it's a tricky thing but very useful if you understand it.
I wish my internet was better so I could play again