To answer your question: my original idea was that everybody starts outside the safety circle, and Arman could Leap in, Malis could fly over, and Luca could Juxtapose the rest in, if the group had the right abilities, otherwise, the circle wouldn't help them as much. But if you think that being inside the circle as a given would work better, then the level should probably be Kill All, not Survive, unless you add in ranged units like a Ravinale Sniper.