This is Airport challange, so rules changed a bit.
Rules:
1. We are allowed to request trains only, if no trains coming in the same direction, where is your target station.
2. We are allowed to walk between stations.
3. If train despawns, we need to spawn at the closest station (not depens on stopping your train at this station).
4. Try to follow SCR rules.
Thx for reading this and watching the video!