I thought this up awhile back yet I have no way of creating any maps because I don't currently have my xbox 360. But my idea for a map is a map that has a track low to the ground starting from the outside of the map towards the inside of sandbox and it could have cover every other block so you wouldn't get hit by the guardians. It would be like a drag race, first one to the end wins. That's all I have right now, so any one can take this idea and use it.
How about duck hunt but use the guardians as the shooter? Then everyone gets to play as a team and the shots are predictable/beatable. If anybody uses this idea inform me, I would like to see the finished product.