When you're taking photographs of action, it's going your camera settings are going to be very different whether you're indoors or outdoors. And even when you're indoors, it's going to vary depending on how much light happens to be in this place. I used to shoot a ton of basketball games at my college and I was lucky because our gym was very well lit. I used to joke around with the AD and say, hey could you turn the lights up a little bit for me. Because, as you know, when you're shooting action you have objects moving and, thus, you need to use a pretty fast shutter speed so that they're not blurry. But, when you use that fast shutter speed, not as much light is getting into the camera so you need to pay more attention to where your aperture is doing in these situations. So, indoor action shots, I would set your shutter speed first so that you make sure you're getting a crisp image and then, experiment with your apertures until you get the right setting which will allow enough light in to get a proper exposure. Now, outdoor activities usually have a little bit more variance. Generally, you're going to have more light because you're dealing with the sun. So, again, I would do the opposite and set your aperture first and make sure you have the right depth of field and you're letting enough light in. And then experiment with your shutter speeds to find right combination. So, when you're taking photographs of action, indoor and outdoor, you need to especially pay close attention your settings to make sure you have the proper image, the proper exposure and everything in focus.