pb add [skill [personality [team [model [name]]]]]
You don't need to use "5' as a parameter for the class. You can puth the exact class number You need. For example if Your class (model) 1 for Terrorists it's Osama, You just need to use:
pb add 100 2 1 1 "osama bin laden"
I told You to see how modelling is done in those plugins to let You understand the method of modelling players (You don't need to use all the features the plugin has).
Players model plugin You could find at AMX X may crash the server if You want to change at once more than 20 bots (for example at respawn). Those 2 mentioned plugins are free of that problem.