[Deathrow Bo Dean]

I installed this plugin (along with the other recomended Downtown thinggy last evening, and I guess its working but not sure? When I spawn a survivor with only me in a Survival game like "c5m5_bridge survival" and I give this command in chat; "!sm_addbot", a bot appears for about 5 seconds, then it disapears droping pills or a weapon to the ground.
Does the above mean that the plugin is working ok? Or ->
Do I have to have move players join to have to bot remain in the game?
Need input. DBD
Also, Can someone give me an example of a Win L4D2 start-up script that will add bots to the server at start-up? that uses this plugin. I tried in-game "maxplayers 8" but my servers reply was that maxplayers add to br issued in the start-up script. Or something to that effect.