How to change the start/new game & training course map [with pictures]

Overview

This guide will show you how to change the start map in HL1 or your Half-Life mod.[MAKE SURE YOU KNOW YOUR MAP NAMES]

Step 1: Go to your Half-Life install folder

Right-click HL1 in your steam library and click on properties.
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Now, go to the LOCAL FILES tab and click on BROWSE LOCAL FILES. The HL1 install folder should open. Find your mod folder (if you’re doing this with Half-Life 1, then find the “valve” folder).

Step 2: Open liblist (or liblist.gam)

[YOUR PC MAY NOT SAY LIBLIST.GAM, AND JUST LIBLIST, BUT WE ARE CALLING IT LIBLIST.GAM FOR THE SAKE OF THE GUIDE.]
You need to find your liblist.gam file and open it with Notepad, or Notepad++ etc. You should see this:
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Step 3: Changing the map

[THIS IS THE PART WHERE YOU NEED TO KNOW THE MAP NAMES!]
In liblist.gam, you want to find (or add) the line

-e-Change the map to your desired map. (MAKE SURE THERE ARE QUOTATION MARKS!)

Step 3a: If you want to change the training course map:

In liblist.gam, find (or add) the line

and add your desired map with QUOTATION MARKS!
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Step 4: Testing the changes

Now after saving liblist.gam, open Half-Life (or your mod) and if you changed the trainmap, start a new game on the Training Course, if you changed the startmap, start a new game on Easy, Medium or Hard. (if both, start both.)

Did it work? Tell me below in the comments!