Runway not usable if the shot blocks are broken. Those blocks are not an obstacle right now, but there's no need to destroy them except when travelling between nodes 2 and 3.

Requires:

{
  "obstaclesNotCleared": [
    "B"
  ]
}

Exit condition:

{
  "leaveWithRunway": {
    "length": 9,
    "openEnd": 0
  }
}