I had a good laugh this morning, please explain how the JP4 is anything but the worst TD in the game, I would rather have 2 Stugs, and SU85 or Jackson.
I could explain it to you but for this I would actually have to know if the person I am talking to is any decent in this game and doesnt have 3 APM potato micro.
Cuz you know, there actually are people who suck at videogames. People who micro and use a JP4 in the exact same way like a T34 or a Jackson, wondering why it doesnt go well.
Oh, and to answer your comparison with SU85 already: You might take a brief look at the unit stats. JP4 has better rate of fire, better armor, same range, better veterancy (it doesnt need a penetration bonus since it has 100% or close to 100% penetration chance on most of allied vehicles), and vet 1 literally allows this unit to go invisible anytime