Trains are a sensible part of OTTD. On this page, we just intend to make some short statements that help you building them for large networks like #openttdcoop's.

• Trains always have 8 cars. No more, no less. This is because of our stations of length 10. Later in the game some trains are developed which have two power cars. Since we do not want to readjust the amount of cars all the time we stick to 8 cars in our games.
• Use SHARED ORDERS (CTRL+click on an existing train with the same order) for trains on the same route! This is probably the most important thing you have to care about. If you want to make a change for a route you just need to change the order and every train which shares this order will apply the change.
• Do not use waypoints anymore. Since the new pathfinding was implemented the trains behave quite smart and find the best way by themselves. A typical order list has only to consist of two orders "Goto Station XY + Full Load" and "Goto Station YZ" where it will unload (note: no need for an unload order!).