Default Need some help rooting

Hello everyone, this isnt my first time modding my phone as I had messed around a lot with the Galaxy Captivate and S2. I just got the LG G2 and feels like I'm dancing from thread to thread with mixed information on what I should when looking at the frimware sticky on the AT&T forum.
I plan on probably trying the grevious flex rom just to start off.
If someone could help me step by step, I would really appreciate it. Right now my phone is updated to kit kat and my software version is D80020K.
I'm not saying I cant find the info, I'm just having a hard time figuring out what I should do exactly. I would really appreciate any help!