Jagdtiger 42pop?! I mean are you joking or serious? No one gets two Jagdtigers anyway adn the most manageable pop for most people is 50 anyway so this wouldn't really affect it getting out.
The Jagdtiger is considered a big enough problem that Relic was going to make you shoot it manually every 8 seconds. And yet, if I suggest that you can have the Jagdtiger, as is, with the one exception that you must have one or two less units late game, then I must be joking.
And if you are only using 50 pop in your games, then this change wouldn't make any difference to you what so ever. In games where all teams are sitting at pop cap however, this will make a difference. This is a way to leave the axis untouched for most of the game, and yet still limit their late game potential (where the problem is).
Yeap number one problem are panthers and strum tiger, lets fhuk them too! Even one of these two are not even a heavy tank...
Decent idea, but different approach is needed
Panthers feel very strong for 16 pop. No allied unit has as much impact for 16 pop. I think panthers are decently balanced cost wise though. I mentioned the Sturmtiger merely for consistency.
Nerf all Axis tanks. So allies can outnumber them 10:1
Heavy tanks would be outnumbered. And that would only be in the very late game. Before that, the prices will still be the same, so it will still be 2 t34s for every Tiger. If you don't want to be outnumbered, you could always build medium tanks. I think it would be great if players actually had to make a choice late game, between heavy and medium tanks, instead of just always getting the biggest vehicle possible.