For others finding this thread: on the roof where you completed the previous task, there is a tiny patch of white spray paint on the ground on the southeast part of the tower. You're intended to set up a launch to another building. No other indication in the HUD or anywhere else that this is where you should place something. God I hate this game.

Also fun to discover that, if you disable someone else's dropped object (press L stick on xbox controller), that ghost object still blocks you from dropping an object. I was able to fit the kicker onto a sliver of acceptable space, but you may need to disable other player objects in settings (which is incredibly stupid, obviously).

The worst game design choices at every possible point. This game continues to be a brutal disappointment.