Scale model painting techniques

Are there specific techniques for painting different materials (metal, plastic, etc.) on scale models?
How does the scale of a model affect the painting techniques that should be used?
What are some advanced painting techniques that can be used to enhance the appearance of scale models?
Can a combination of airbrushing and hand painting techniques be used on a single scale model?
How can one achieve realistic weathering effects using hand painting techniques on scale models?
What types of paint work best for hand painting scale models?
How should a paintbrush be properly cleaned and stored after hand painting scale models?
What techniques can be used to apply decals and details by hand on scale models?
How can one prevent brush strokes and streaks when hand painting scale models?
Are there specific brush types recommended for hand painting scale models?
What are some tips for blending and layering colors when hand painting scale models?
Can hand painting achieve the same level of detail as airbrushing on scale models?
What are the basic supplies needed to start airbrushing scale models?
What safety precautions should be taken when airbrushing scale models indoors?
How can one achieve realistic weathering effects using an airbrush on scale models?
Are there specific types of paint that work best for airbrushing scale models?
What are some techniques to achieve smooth and even paint coats when airbrushing scale models?
How can one effectively clean and maintain an airbrush used for scale model painting?
What are some common challenges faced when airbrushing scale models?
What are the advantages of airbrushing when compared to hand painting scale models?