new balanced upgrades

[Lezowski]

I think the word you are looking for is "variety", as these upgrades would not be balanced. Tanks are meant to be outclassed, forcing you to change some point in the game. Every tank has its own niche, but it will be obsolete at some time. We also have tanks that are meant to be weak, but have amazing abilities to make up for it. Take the scout for example. It's fast, good defense, excellent creeper, and it has nets. You're suggesting that scout could be used in end game. A 10k hp scout without hulls would be retardedly strong, plus you get to benefit from his creeping abilites all throughout the game with no fear of being overshadowed by more expensive tanks. Other tanks simply won't make the cut. Abilities are meant to scale as people get bigger tanks. Light tanks rocket skill won't have as big a effect as it would normally have in the beginning of the game, where it was meant to be used.

You are also suggesting a flyer that isn't as slow as Sky Fortress, but will also have some of its bulk. Why do you think Fortress was so slow to start with? He was meant to be incredibly bulky at the cost of speed, but with these upgrades you can benefit with Jet Propulsion and also have the HP to stand against titans. To put it into simple terms, you have all around great tanks such as Sky Tank that were meant to be outclassed by stronger tanks, but with these upgrades you can keep the tank without sacrificing bulk. The strongest tanks have some balance to keep them from being too powerful, the tanks before them were only balanced by HP.