Write a 15-second video ad script for a sports brand targeting DevOps engineers on Instagram Reels using a {{tone}} tone. The campaign goal is to reduce churn. Output must include: Hook (first 3 seconds), Problem Setup (seconds 3-10), Solution Reveal (seconds 10-20), Proof & Credibility (seconds 20-25), CTA (final 5 seconds), Production Notes, and Variations (2 alternative hooks and a UGC version). Maximum 600 words. Paste any relevant background information after these instructions before running.