How to Make Floating Objects in Forge
From Halopedia, the Halo wiki
The following is how to make make floating objects, bases, etc in the Forge mode of Halo 3.
Floating Base
This is a glitch you can use in Forge to make bases, objects, etc in any map float.
1. Find a map you want to do this in, such as Sandtrap.
2. Take a Radio Antenna or a Crate and stack them to your disired height.
3. Put a Receiving Teleporter(or any other) on top and fip it so you get the flat end up. Delete the towers, crates, etc.
4. Put anything you want on the Teleporter and it will float.
This can be used to makes floating bases, objects, etc in your map. Note- If you make Radio Antenna's more than 5 tall, make sure to put a Sender Teleporter on to at this point and keep building on top of it. It will help the tower not wobble as much.
- Excellent for sniper bases
There is a second method however but it needs two controllers. First, have player one spawn a large heavy object like a crate and hold it in the air. Then, player 2 puts the teleporter on the box. This works mainly due to the fact that when ever placing a item it will spawn where ever it comes to a complete stop. Now, to make falling objects with this method you will need to place them on somethng heavier than the object you want to fall so it would be best to use a upside down tank for things such as warthogs and drop pods.
Falling Fusion Cores
If you want your map to look like it's being bombed, use the method above. When you reach you height, Place a Fusion Core on top then delete the tower. Once the match starts, you will have Fusion Cores falling from the sky. Note- You can also set your respawn time to 10 or 0 seconds.(set run-time minimum and maximum to max setting to do this) There is a much eaiser method however. It requires two people. Player 1 makes a sniper rifle and takes it. Player 2 flies up as high as he or she can, and makes a fusion coil. P2 then presses 'x' to go to the summary screen, then 'x' again to go to the advanced screen. He or she then sets all of the numbers to the highest they will go. P2 then drops the coil, and Player 1 shoots it. Whever the coil explodes is where it will fall from. Every time the fusion coil explodes, a new one is formed. P.S. - This will eat your budget alive.