IN my opinion the whole different color paint as AT paint is a bit hinky. Cheaper than nerfs sure and I fully understand the reasoning namely safety.
Jumping and walking tanks? No, unless it is a game themed to accept them.
The balls are stress balls. The squash balls I have not tried yet, but I certainly will. The issue will be getting fields to accept the balls instead of nerfs. And using the balls does something, it cuts the range that RPG crews can fire from.
Been playing since the 1980's. I am old and devious and will shoot you on sight. Dirka Dirka.