Ok Ladies and Gentlemen, I present to you a revolution. This map is seriously going to change the way you think about the capabilities of Forge.
The Premise: Complete the weapon trials before the time runs out, try not to be defeated by the guest, whom isn't playing.
THIS IS A 1 PLAYER MAP
Sparknotes: In short, all you need to do is load up the map/gametype, sign in a guest to blue, make sure you are red, and go.
DOWNLOAD THE MAP HERE
DOWNLOAD THE GAMETYPE HERE
(Seriously download them both, you need them. You will probably have them on your hard drive forever though, sorry...)
Instructions: READ CAREFULLY
1. Sign in a guest, and switch them to Blue team.
2. Make sure you are on Red team.
3. Put down the guest controller, grab your own, and begin the game (you play as RED, no one plays as Blue)
4. You MUST complete your objectives to move to the next task; they are as follows.
- Destroy the 10 pallets with the Fuel Rod cannon
- Move through (now open) teleporter
- Find the Dummy guest and kill him with the shotgun
- Move forward through the (now open) teleporter
- Use grenades to kill dummy guest
- Move forward through (now open) door to your left
- Grab Spartan laser and go through portal
- Kill dummy guest for the final time
5. Snicker in your weapons mastery prowess.
The Tale of Red

Killing some pallets, you need to destroy all 10, with the 10 shots, in order to move forward.

This teleporter will open, and let you through, if it doesn't, then you missed one.

Find the guest in the boxes; he can be anywhere! He also starts with Active Camo, if you you can't find him after 1:30, he will pity you and uncloak.

After you find and kill him, the next area will be available to you via teleporter.

Next is the grenade trial, depending on if he spawns close, far, or in the middle, you will have a different grenade to use. Far=Spike, Close=Frag, Middle=Plasma

After you kill him with grenades, this door opens. Grab the Spartan Laser, and keep moving.

The guest will now be on a randomized teleporter loop, I think you can figure out what to do from here.
Additional Notes:
-Don't bother with a Forgethrough, just load up the gametype/map and play! THIS IS A 1 PLAYER MAP!!!
-This only works on 1 Xbox, you cannot play another player over xbox live (because of lag).
Enjoy
~Dev