Well, i found out today how to use the glitch in Escort mission(Scropion Map).
When your team is defending and the enemy's tank has gone pass your base's fist line of defence, your spawn will be moved to the back of the map. Now, from here there's a way to ghost mode. My ghost mode saying is that "You move around while your character is way back in your base".
You have to make use of the following things:
The ladder in your spawn
The RPG(rocket launcher) weapon box.
Steps to follow to do the glitch:
When your enemy had gone pass your base's first defense line, you will spawn at the back(idk how to say this, just different spawn place).
After spawning, you see the ladder, sprint to it, when almost reaching the ladder, you jump. Then you go to the RPG Weapon Box, and press "E". If you can't open the weapon box, this means you have been "Ghost Moded".
Also, you can move around after you are ghost moded, just that after 30-40sec, your screen will see yourself in your base again.
A video of being invisible, enemies can't see you on youtube: . <--- Found the link on IJJI's website.
Please also do not abuse it everytime, or else it will get patched soon. Also, this is my first time finding glitch in A.V.A.
Have fun.
IF YOU CAN'T DO IT, DO NOT SAY THAT IT'S NOT WORKING, BECAUSE IT'S WORKING FOR ME.
ALSO DO NOT ASK ME TO POST A VIDEO, BECAUSE I DON'T KNOW HOW.
THANK ME IF I HELPED YOU.
EDIT: You can do it everywhere at Escort Scorpion map, where there is a ladder and a weapon box. You might be able to do it at other maps too, but i didn't try it.