Step 2:

Click the OK button to accept the default values for creating a new map.
Step 3:

Click the Triggers button on the toolbar to open the triggers window.

Step 4:

Delete all the the Melee actions from the Melee Initialization trigger.

Step 5:

Now add a new action.

Step 6:

Select the "Game - Set Next Level" action from the list. Then click the "Maps\MapName.w3m" and change it to "Maps\nextlevel.w3m". As you can see setting the next map that the player will go to is quite easy.

NOTE: Notice that the map we are going to is located under the "Maps\" folder. If you open windows explorer and navigate to where you have warcraft 3 installed you will see a "Maps" sub folder similar to the image below ...

... The maps folder is where you find all of the multi player maps for warcraft. Witch means we could have also specified "Maps\Test\nextlevel.w3m" as the location of the next map to navigate to.

Step 7:

Now add a wait action so that when you test your map it will not immediately jump to the next one. In this case we want to wait 5 seconds before going to the next map.

Step 8:

Now add a victory action. Also, it is not necessary to "skip" the dialogs and score screens. But it will speed up the time it will take to test the map.

The action list should now look like this.

Step 9:

Now close the triggers window and save the map you just made. NOTE: you may want to draw some grass or add a player 1 start point, and even change the title of your map to something else, but it is not necessary.

Step 10:

Now create another new map. And accept the default values. Again you can change the default values but it is not necessary.