I don't really know what it's called, but how do they do the thing where they shoot the portal OoB then drop the cores down? I'd like to know how to do it.

They edgeglitch to put the portal on the extern part of the incinerator wall (still inbounds, not OoB) and since the trigger is too big because Valve, the cores touch the trigger as if it was inside it.

Thanks. I've been wondering how to do it for a while.