Before opening the menu, while counting down, zombies need to be hitting you.
-On the menu, go to settings, and start multiplayer, then switch back to single player (2mins)
-switch map screen(go next screen)
-go back, open menu wait for a couple of seconds, then your free to go (at least that's how i do it)

Optional:
-Kill zombie, open screen, wait for 1min, kill zombie, move next screen (after going to menu and switching, 1st step)

I believe it's before you can see the map itself, so when it says connecting to server, speedhack must be applied. Zombies don't attack code makes the zombies literally not attack and just keeps walking to you. So if you attack the bloaters, you would be damaged if you get close to it. Godmode code setting it up isn't the prettiest thing in the world but what it does is make so the damage done to you is 0. The zombies attacks you but you won't take any damage and makes them stop at the spot where you got attacked. Bloater damage won't even affect you.

only change the bottom address the one with the 329A, dont change the others

Man idkk why people are down voting multiple loots hack when its perfectly working. I guess some people downgrade it so people think it doesn't work and won't use it :P

Is there any way for ammo hack or something like that?
I mean,looting and others wont really help if you are not premium member.

how come the loot hack doens't work for me?  is it still working ?
 

well it is sad that few hacks has been patch