Moto G 2nd generation soft bricked

Just in case you are in hurry i think you are missing wiping davlik cache
and then install zip from sdcard,and make sure the zip is the correct firmware for your device,and also once your bootloader is unlocked, to root your device is not a big deal,search for supersu package on google for your device and install it as "Install zip from sdcard" in custom recovery mode


Full Process:

1. first of all get the original firmware for your phone ,search the internet using your mobile phone name etc. and please be sure to check that the firmware is the same as your phone's original firmware.(Which i think you already had)
   
   2.Now if haven't already please install custom recovery like CWM(Clock work mod) or TWRP,i was using CWM.(You also seems to have this from your question)
   
   3.Copy the firmware to your device or memory card location
   
   4.Enter recovery mode,Now once in recovery, wipe cache & factory reset, remove davlik cache, and or cache
   
   5.Now Select the option install zip from sdcard
   and continue all the verifications.
   
   6.wait for a while until its done.
   
   7.Now reboot your phone.
   
   please note that this information is for successfully recover bootloop(soft brick) for android 4.2 ,while this must be the same steps for your device, please just be sure before proceeding