1. Go to forge world.
2. Make a one way node teleporter and put it on the island.
3. Fly away from the island where there is nothing but water and rocks until you can't go any more.
4. Buy a grid and push it out of the battlefiel,d but put it on fixed.
5. Make another one way node and push it out of the battle and put it on fixed. Make sure it is on the grid and then teleport.
6. Click X on the teleporter and change the settings on it so you can teleport all types of vehicles (but not humans) and set it's channel to bravo.
7. Build another one way teleporter way up in the sky (but make sure it doesn't say on your screen "Out of Battlefield") and set it's channel to bravo.
8. Buy a Ren and put it on the grid. Then drive it through the teleporter and you should fly really close to the skull up in the rocks.