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High Speed's Really Big Map

In the words of even360nokill: it masive.

This map is completely open-source, and any and all modifications are completely allowed. You can download the map source below.
You are free to redistribute the original and any modified BSP at will, with or without my explicit permission, so long as I am credited. :)

This map was created out of the need for a very large map to fly WAC and/or HVAP aircrafts in, while also just being a nice map with enough built-in features to be enjoyable.
I apologize for the poor video quality. I used Garry's Mod's built-in recording function, and it only captured at 360p.

Features:

• Four quadrants, each with a different environment.
  --(grass, sand, concrete, and water)
  
• Airport in the sky, including three runways of varying width and a large helipad.
  
• Teleporters running to all five areas (four quadrants + airport), with each area accessible from every other area.
  
• Road around perimeter of entire map.
  
• For some reason, I made a random highway diagonally between the grasslands and the concrete area.
  
• Several buildings.
  --Three small house-like structures in grass area.
  --A random shack in the sand area.
  --A dock in the water area.
  --Two warehouses and a skyscraper in the concrete area.
  
• The map is almost as tall as it can possibly be, and the airport platform is only halfway up!
  
• Day and night version. If you use Atmos, you probably only want to load the day version.
  
• Completely open-source! (Read license below if you plan to distribute modifications, which you are allowed to do.)
  Download the source here.[sidney.spaceportorange.com]

Notes:
You might need Half-Life 2: Episode 2 for a few things to appear correctly, but nothing game-breaking.
The night version is more evening-like. I didn't like how dark the night map would have ended up otherwise.
Filenames are gm_hsd_reallybigmap and gm_hsd_reallybigmap-night.

Disclaimers:
If you’re one of those people who thinks the map can’t be any good because the file size is so small, I’ve got news for you.
For one, the compression that Garry’s Mod puts on workshop addons reduced the file size by nearly 17 MB (!). On top of that, the level geometry is so simple that the file just isn’t that big.

Constructive criticism is welcome in the discussions area, but please don’t just say you hate the map and run off; that doesn’t help anyone.

Licensed under Creative Commons Attribution NonCommercial Sharealike license version 4.0. See here for more information.[creativecommons.org]

Credits:
Signs – me
Picture of Gabe Newell – Not totally sure, found it on Reddit. I will gladly remove it if it becomes a problem.

Programs used: Paint.NET[getpaint.net], Nem’s VTFEdit[nemstools.github.io], Hammer, Source Multi-Tool

Resources used: photo of Gabe Newell, 10 little cans of Sierra Mist, 1 can of Mist Twist (which I absolutely hated), 2 cans of A&W cream soda, 4 cans of Canada Dry ginger ale, 2 cans of Lays Stax, and 1 box of extra-toasty Cheez-Its.

Music that I listened to while mapping: The Classic Crime – The Silver Cord, The Classic Crime – Vagabonds, Five Iron Frenzy – Engine of a Million Plots

7 gnats were harmed during the making of this map. Gosh I hate those things.