Some one suggested to have a toggle button like the Sturmpios minesweeper. I liked that idea.
I didn't. Anti-everything units are not the way to go. You have a choice: either you upgrade the shrecks, either you don't. Either way, pzgrens need to be a reliable AI or AT unit. In the AI sector, they are kind of meh. I mean if you chose not to upgrade them, you need to realy rely on their AI capabilities.
But then, you cannot make them better in the AI sector not by a small margin, because of the river of tears you will see around here (I remember some people around here called them "terminators". Most probably the same guys who think commandos were ok). And then, next month, they will be nerfed into the ground and be worst than today. So thanks, but no thanks.
Edit: Recently I begun to think Relic listening to community does more damage to the game than good.