Creating a task
The first step to creating a task for your NPC is to create a name for it and add it to the enum. Here's an example name for a task: TASK_COMBINE_DIE_INSTANTLY.
Once the task is added to the enum, you must use the DECLARE_TASK macro in the AI_BEGIN_CUSTOM_NPC section.
Here's an example of the DECLARE_TASK code:
DECLARE_TASK( TASK_NEWNPC_TASK )