Think of the rooftop as a 64‑square board. Each planter is a resource node; the wind‑tapped vents are cover spots. Push the vines to block the main entrance, turn the gutter into a choke‑point, and keep the sprinkler line like a health pack—use it only when the enemy is low. In a tight spot, every inch counts, so map it out, plant for cover, and when you see a gap, exploit it before it becomes a hazard.