The Dark Mod Questions

I have a few questions.

1. I'm currently doing the training mission and will probably play a couple of real missions afterwards. Of all the 60+ missions, which ones should I consider playing?

2. How do you pinch out candles?

3. Is there a way to increase the FOV from what I think is 90 to 100?

4. Can you pull crates, and not just push them?