Scene Purpose Clarifier

I'm writing a scene where: [WHAT HAPPENS]

Before I write, help me clarify:
1. What MUST this scene accomplish for the plot?
2. How should the protagonist change (even slightly) by the end?
3. What's the central conflict or tension in this scene?
4. What information does the reader learn?
5. What's the emotional arc (where do we start vs. end)?
6. What's at stake if things go wrong?

Then suggest the best POV and tense for this scene.