L4D2 | Chaos Generator Achievement Solo

Before starting a game, make sure you have these addons installed. You'll need these in order to get the achievement in single player mode.
https://steamcommunity.com/sharedfile...
https://steamcommunity.com/sharedfile...

1. To get this achievement, start a single player game, select The Sacrifice, and select the third chapter.

2. Make your way to the generators and clear the area of zombies.

3. With the VOX vocalizer, select "Go ahead" (Lead). The bots should start making their way to each generator.

4. Once they're there, open up the vocalizer menu and select "Hurry".

5. They'll start the generators at the same time.

6. Congratulations, you unlocked the achievement without the help of human players.

Unfortunately, I already had "Chaos Generator" unlocked, so the achievement didn't pop up. I wish I had recorded it, but I was testing it out to see if it would work or not.

NOTE: The "Hurry" vocalizer command is not available in the standard vocalizer, you need a vocalizer addon to use it, or you can bind the command to a button:
bind [any key] "vocalize playeremphaticgo"

If you're trying to get this achievement in L4D1, you'll have to find 3 other human players to help you get it.