Left4Dead-how to practice as infected against bots

A lot of people have been asking so I thought I would share how you go about playing against bots in Left4Dead as the infected (we like to do hunter practice).

You need to either have the rcon password of the server you will use, or host a local game. The easiest way is to make a .cfg which will save you a lot of typing in the long run so I suggest you do it.

Open notepad and past in the following


sv_cheats 1
director_no_human_zombies 0
sb_all_bot_team 1


save this as versusbot.cfg and save it into your left4dead/cfg folder (search out the drive you have steam on, it's usually in steam/steamapps/common/left4dead/ etc etc, do the legwork and find it.

once it's in there run the game, go to options and keyboard settings and be certain to enable developer console. Start up a versus game, bring down console and type
exec versusbot

mind you it will autofinish underneath and it should be the only config with a v so it will show up once you get to the v. you have to exec this at the start of each round (just hit up arrow enter in console each time following to redo the last command entered). Hit M to change team to infected once you have done so.

That's it, mind you the bots are not the smartest on earth and they tend to have a tough time triggering events needed to move forward, so you will have no shortage of time to practice.