To start a Bot game:

1. Select Multiplayer from the Main Menu.
2. Select Start Game.
• The Select Game field should be: "Deathmatch Game"
(default).
• Select Folder should be: your Deathmatch folder (default is
"DeathmatchMaps").
• Select Map should be: the Deathmatch map in which you'd
like to get your butt kicked.
3. Select Configure Game after setting up the above.
• Use the Number of Bots field to choose how many Bots
you want in your multiplayer level (you'll need at least
one, or you will be very lonely!).
• Set Standalone Game to "True."
• Select Configure Bots to setup the characteristics of your
computer-controlled opponents. You can alter the appearance
(mesh type and skin), aggressiveness, and combat
style of each of the Bots you will fight against.
4. After configuring your game, select Launch Game from the
multiplayer menu.
Note: In addition to playing against the Bots solo, you can also add
Bots to Internet and network multiplayer games: just set the Standalone
Game field to "False," and have your friends join your
multiplayer game as usual.