How to install gmdm1 =============== This will sound patronising to most people, but I wanted to make sure even those with minimal computer knowledge could install the map correctly. I assume that WinZip is being used. Roll on the early-learning guide to ZIP archives! NOTE: Your computer may be set up to hide file extensions, which will change the appearance of the filename. For example, "op4_gmdm1.zip" will just look like "op4_gmdm1". 1. Extract the file "op4_gmdm1.zip" into your "...gearbox\maps" directory. To do this: Right-click on the file "op4_gmdm1.zip". Select "Extract to..." In the first text-entry box, type the correct directory name. For example, if your Half-Life directory is "C:\games\Half-Life" then enter "C:\games\Half-Life\gearbox\maps". Make sure the "use folder names" box is checked. Press the "Extract" button. 2. Open your "...\Half-Life\gearbox\maps" directory (the same one you extracted the "op4_gmdm1.zip" file to) and delete the file called "Install op4_gmdm1.txt" (that's this file). You might also want to delete the original "op4_gmdm1.zip" file, since you won't need it unless you plan to distribute the map. 3. Open the folder "op4_gmdm1 info". Open the file "op4_gmdm1.htm". Look at this file for instructions on setting up the map and other information.