first of all I've never ever seen a blob of pgrens , for their cost and the cost of the upgrade they are totally balanced imo.
But u do have a point, however i think the nerf should be implemented otherwise.
How about that squads with shreks/zooks move 20% slower , that will make them easier to deal with using vehicles.
Another important thing is that Shreks and zooks won't fire on infantry , it makes no sense whatsoever, that would also get rid of the occasional snipes they can make.
