It was said that it can't be done, but I did it. I made a 1:1 scale remake of Gephyrophobia from Halo 1 PC in Halo: Reach! I forged the map while playing Halo 1 on my PC right next to me. I measured the length of pathways by counting the number of seconds it takes for one to walk from point A to B. I added more spawn points to prevent spawnkilling. There will be no spawnpoints on the catwalks (just like in Halo 1), due to having most of the battles end up there with people camping behind the teleporters, when I added the spawnpoints there.

Vehicles:
Ghost x6
Banshee x4
Shade Turret x4

Weapons:
AR: x2
Magnum x4
Sniper x7
Plasma Repeater x2
Shotgun x5
Needler x2
Fuel Rod Gun x2
Rocket Launcher x2

Equipment and Powerups:
Healthpacks x5
Overshield x4
Active Camo x1
Frag Grenade x2
Plasma Grenade x8

Pros:
-There are no “hiding spots” in the map.
-All of the weapons and vehicles have the same clip/spawn time as they did in Halo 1.
-The map is to scale with Halo 1.

Cons:
-Elites were unable to go through teleporters, so teleporter frames had to be removed.
-Catwalks are slightly shorter.*
-The level isn’t surrounded by a canyon.*
-There are only 8 railings on the map.*
-The middle of the bridge isn’t elevated on both sides.*
* = Due to problems with the budget and not having enough items/money.

The map went through lots of playtesting, including players trying to “break” the map. I received help with someone on the spawn points, and got the idea of using $10 flat rocks instead of the $50 decorative covers.

Pics:

Top view of the center

Outside of red base

Blue Base Catwalk and teleporters

Action Scenes