Overdose (Quarantine) glitch

Hi all
I just discovered that on Overdose, the vents that you can slash open with a knife? The ones that fall down? Well if you get rid of those, run and jump down it, if you land in the right spot you will go under the map! And if you have working chams you can shoot people through walls i believe.

These are the vents i'm talking about


Make sure they are down lik ein this pic


Another one coming about where to jump

interesting i think a vid wood do better

Nice find if this is true.