I thought about the same thing in the past but I haven’t made a topic about it. In CIU, the longest mission you can have is the weekly challenge (100 waves) and, from what I played, you can get around 40-50 firepower (assuming you’re not dying). Now, if you fight against at least one Henterprise or Apple Core, that gives you a considerable amount of firepower (those need to be nerfed, Egg Cannon instead, doesn’t give you anything…). Most missions though have between 20-40 waves so, in my opinion, the milestone of 50 or even 40 is too big. I’d rather suggest the second secret firepower to be at 30. Often times, just keeping that firepower above 10 or 20 can be hard, especially when you have epic waves on SSH with high difficulty on that mission, so the same thing could apply to 30 too. Plus, balancing the weapons isn’t easy indeed. Also, I suggest the second secret firepower to only activate if you actually bought it from the shop. Let’s say it’d cost 3000 keys. I know that it’s pretty expensive but considering that you’d have it forever for all weapons and also that bonus would be considerably bigger than the one at 20, I think it’s a fair price. Plus, a beginner at this game would have no reason to buy this if it hardly even reaches firepower 20, so this would be something for experienced chicken hunters.