Build Master: Bridge Race How to get hero experience points without doing damage

This is for season 2 and above!
Hope this video helps to explain what you need to do to get hero experience from hitting subways without doing damage. So you will want to do your first attack as soon as the very first shot hits start swiping from the tank in the corner to the subway as fast as you can over and over as you watch your energy it will go down 10 points every time you swipe. You should only let your tank get one or two shots in between swipes when you have used up as much energy as you want to use your last swipe to just go to open land next to the subway and your tank will turn away from the attacks. Please note: If you are seeing a green health bar above the subway, you are doing damage and doing it wrong!