A little confused. topic

OK so I'm fairly new to xda. I know how to navigate a little due to the fact I have a nexus 7 2012. Other than that all of my phones have been prepaid and I usually would reside in Android forums. I'm not sure exactly which model number is the at&t variant for the g pro. Mines ships later on today and I want to get rooted and get a ROM on here really fast. Just wanted to know which ROMs were safe to flash and what not. The help would be greatly appreciated

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