Ok, so, the title is so weird and stupid, I don't know what to write there, but here we go.
Well, my game is like this:
Well, there's a lot of zombies, right? Firstly, if the zombies collided with the wall, the wall's health will decrease by 5. And it should, but, I thought that when the zombies hit the wall, it will subtract by the instances number. Not just subtract 5. It just subtracts 5! It should be if there's only one zombie but there's like 50 of 'em! It should subtract about 250 right off the bat. Not just 5. Is there anything that I can do to fix it??