YouTube - Hologram Bridge Tutorial This has limitations, so its not really a "must have" in any map, Think of it as purely aesthetic. Its really easy to do aswell. 1: Go over the the area shown in the video 2: Spawn a Window Coliseum, and spin it until it is vertical 3. Dip it into the rock until it pokes through the cave at the bottom, let go, and the object disappears, yet you can still walk on it. Grenades go through, Bullets go through, Weapons don't and people don't. Honestly, I have no idea why this works, but i've found it, and as far as I know, nobody else has, I'm sorry if you already did, but feel free to use this technique on any of your maps.
I found this out a while ago making a CTF map on that same area, but it happened to me with a Coliseum wall in the top right corner (from where you start your video) on the rock. It baffled me!
Nice clear tutorial - but yes, this has been known for a while, and it can be done in other places in Forge World as well. Not too many though. I think someone else here said it could be done on Paradiso island.
With a Platform XL. I don't think anyone else has replicated it with objects besides coliseum walls, but it is possible. I may compile the locations and objects this works for at some point, but it will take quite a bit of time. Search the forum and you'll find a few more threads about this.
Sounds kinda like a reverse version of a capture plate: Bullets can't go through, no grenades, only humans and vehicles