Almost entire northern half of To the Core map is blocked for chrono tanks to be teleported there, even if it's flat ground or road. There are just a few points where it is possible to teleport and two of these places are just big ass rocks, where, I think, it shouldn't be possible to teleport. You can also teleport on chainlink fence in the middle, or two garager roofs in the middle as well. Even on giant rock in swamp near Allied base entrance.
- Buy chrono tank
- Try to teleport anywhere on northern half of the map
- Usually, places where you should not be able to teleport are the ones that allow you to do so
All other maps are mostly flawless in this case, however, pipeline has old map picture (showing some rocks which don't exist), but teleport mask is completely fine.