There really is no guide for claw on apex legends. Sorry for the late response. What i did to achieve claw on apex is I sat on firing range for about 4-5 hours. Since there was no firing range when you posted this, i thought this would b helpful now. Theres 2 versions of claw, Flipped and regular. I recently learned claw on xbox and can only play flipped because regular is too hard for me. For flipped I switched the RB and LB to my triggers and aim and my RT and LT are my tactical and pinging abilities. Then rest your index finger to where you can press x, b, y, a, while keeping your thumb on RS. Put your middle finger on RB and just start messing around. Don't go off of other peoples guides on where to put ur hands for x. b, a, y because your fingers will not bend at first. get comfortable with your index finger and in 3-4 hours of practicing in firing range. I am now about a week in playing claw and I love it. Yesterday i finally trusted myself to play claw in ranked and it went well. I give it a week until your completely comfortable with it. The hardest part is working on my aim, it took me a while to get used to it, but youll never wanna go back once you play claw.