Player setup for mobile

Hi am having a big problem with setting up the FPC in my unity scene and I was wondering if there is anything special that I have to do to set it up. And how do I set up buttons to shoot or do I use GUI. Thank you for helping me out and have a good day.

well depending on the device and complexity of the interface, you may able to use GUI, otherwise you will have to hard code your interface for mobile. Also, make sure you set your desired platform in the build settings that way all assets will automatically be optimized for that platform.