Zombie Mode survived

SO ,Hi guys, just finished Zombie Mode all 20 waves for the first time.
With hack ofc.
Here are some pics to prove.

I was under the map hole game with Dig. Shot the barrels under floor.(only sometimes with Chariot I went up on the vents:


Heres the end pic with heli, heli is at the laft corner about in the middle, under the "You Are Survived" thing.:


And here´s the last score and stuff.:


I could have done it faster but i went to bathroom and had a nice meal in the same time as the clock was going on.
I reccomend you just stay under the floor,get zombies next to the barrels and then shoot the barrels.
Have A Nice Day!!!