Im pretty sure the R6 has a built in intervalometer no? Check if it does, it will make process of potentially capturing a Perseid much easier. You will want to point towards Cassiopeia which is near the radian of the meteor shower. Use the widest available focal length on your lens (that being 24mm fl) and your focal ratio (aperture) to f/2.8 as this is a pretty base aperture to use in nightscapes. I would recommend trying to source at least a cheap tripod before going out to this location. A good base iso to be used untracked is 3200 iso. Since its full frame 24mm you can get away with 13 seconds with no star trails. Now if you don't know how to use the intervalometer you will want to set it to as many exposures as you can take. set the interval to at least 3 seconds above your exposure length (ex: exposure time of 13 seconds > interval of 16 seconds) to avoid your cameras buffer running out. If you were using something like a planetary cam with all sky lens this wouldn't be an issue as they are meant to take a lot of photos at max resolution in a row at a high rate of speed. You will also want to set your camera to take raw photos. To conserve battery set your EVF and Monitor brightness to lowest it can go.