Actually, it's only very slightly like it. Mainly it's an option to switch your control to a bot.
Spawn any bot. Let's say you name it "Bob", and it's a normal blockhead. Now you spawn another, and name it "Jimmy", and it's a normal blockhead. You also set both behavior to be your friends, to not attack you and to attack enemies, such as the zombies.. And also there's you. Let's call you "Blockhead999999".
Likely, those two bots are doing silly things right now.
Okay, now add an event to those bots, blockhead! You select "onActivate" "Bot" "isControllable" "Yes" You click on their holes (heh) and now you can control them!
Type "/listchar" and you would get this in chat:
"You can control these characters:
Blockhead999999
Bob
Jimmy"
Your original player's name will always be yellow. However, each of the bot names will be different colors. You can change what their color is by typing "/setmycolor" and typing a color. This command will not work when you are playing as yourself.
Okay here's how switching would work:
You then type "/switch Bob" and the camera would then switch to Bob the bot! He stops doing all the funny bot stuff, and you are now in full control. When you chat, your name will be your color.
"Bob: lol im gay cigaretteycigaretteia aghasefgshgfhags"
But then what happens to your player, Blockhead999999? Oh well of course, he starts acting like a bot! He does boty things. He will wander around, randomly use the hammer and other things. (for safety, the tools wont do anything) Unlike bots, these actions would only happen if the player has the tools. Bots with these idle actions deactivated will not have the tools, unless an RTB pref is changed. The bots would have full trust with the player and all other bots, unless changed by an RTB pref. Also your bot's inventory is saved when switched.
Now to combat doing this, you spawn some zombies while being Bob. Because the zombies are hostile, Jimmy and Blockhead start to attack, just like bots! Controllable bots will stay somewhat close to each other if they are combating in the same area, and also depending on their behavior mode, unless an RTB pref is changed. You notice that Jimmy has a better weapon and is in a better position. You just switch to him, and then Bob proceeds to act like a bot again.
Now my fingers hurt. I'm sure you get the point now.