[AT&T Galaxy Note 3 General] phlashb4k:
Sorry guys work got the best of me. I just got permission from a couple of developers to re-do a thread that elaborates more into how to root, flash etc. So that will be up by the end of the week (hopefully). My method I will be posting is completely different than what I'm telling you here. Because my guide will let you flash an a single file using flashfire that will already have root, xposed, viper audio, + extras already installed and configured. What I'm posting below is the main method being used.

In the mean time:

Download and install Samsung Mobile Drivers http://developer.samsung.com/technical-doc/view.do?v=T000000117, Reboot before connecting your phone.

Download https://www.androidfilehost.com/?fid=95784891001615211 - This is a stock NC2 (Android 4.4.2) image you will flash to down grade from 5.0. (Temporarily).

Download Towelroot https://towelroot.com/tr.apk - This is towelroot, it exploits a vulnerability in android 4.4.2 that allows you to gain root without even rebooting your phone.

Download SuperSU https://download.chainfire.eu/696/SuperSU/UPDATE-SuperSU-v2.46.zip?retrieve_file=1 - You can of course user any superuser app. I am personally a big supporter of Chainfire and his applications.

Download Safestrap Safestrap-KLTEVZW-NCG-3.75-B03.apk http://xdaforums.com/devdb/project/?id=4718#downloads - This will be your recovery.

Download Odin http://xdaforums.com/showthread.php?t=2711451 Make sure it's version 3.10.0 and only download odin from that post please. There are obnoxious amounts of fake odin downloads that come up in a google search that may contain malicious code.

Don't forget Busybox https://play.google.com/store/apps/details?id=stericson.busybox&hl=en

Also download any ROM you want to flash, BEFORE doing this. Unless of course you want to stay on rooted 4.2.2

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0. Backup. Back up everything.

1. Place Towelroot, SuperSU, Safestrap, and Busybox on your SD card.

2. Bring your phone into download mode. (Power Button+Volume Down+Home Button)

3. Connect your phone to your computer using usb. (Back of the computer usb is always better)

-Make sure you installed the Samsung Drivers

4. Bring up odin and place N900AUCUCNC2_Full_Odin_Tar.tar.md5 file in the AP slot. (Odin might hangup and freeze for a minute. It's normal, don't click or do anything, just wait.)

5. Auto Reboot and F. Reset Time on odin should already be checked. Just make sure.

6. Under ID:COM on odin, it should read 0:[COM4] in light-ish blue color.

7. Odins message should read <ID:0/004> Added!!

--Numbers might be different for each person.

8. Click Start and wait a while. After 15-20 minutes your phone will eventually boot into Android 4.4.2

And in this exact order:

9. Install Towelroot and click 'make it rain'

10. Install SuperSU, Be sure to disable knox when it asks. If it hangs at all just force close SuperSU and try again.

11. Install Busybox

12. Install Safestrap

Done.

When you want to flash a ROM simply place it on your SD card and flash it using Safestrap. Make sure when flashing that the ROM comes with the OC1 kernel. If it doesn't you'll need to flash it after flashing the ROM.

As I said above I'm going to be posting an entire thread this week dedicated to rooting, flashing, and working with this phone. It's going to have the most updated information that I have and an easier and quicker method that doesn't require Safestrap. I'm going to ask mods and hopefully it will get a sticky.