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Desired's AI Standoff Creator

A simple STool that allows you to create standoff situations for NPCs using the Source engine's ai_goal_standoff and ai_battle_line entities. Standoffs allow NPCs involved to use cover points while advancing to their target and, if one is available, to stay behind a battle line. Standoffs offer various levels of aggression which determine more of the tactics an NPC will employ, predominantly featuring prolonged sustained fire and more risk taking.

Left-click to create a battle line entity. Location is based on where you point at, orientation is based on what direction you're looking into. From what I've tested, aim outwards into where you want the region of the standoff to be (affected NPCs will stay behind their battle lines). Right-click to create a standoff entity. Reload to clear the entities.

For more detailed instructions on this somewhat complicated addon:
Aggressiveness: Aggressiveness of the NPCs affected by ai_goal_standoff. 0 is very low aggression and 4 is very high aggression (read https://developer.valvesoftware.com/wiki/Ai_goal_standoff ).

Battle Line Name: The name of the battle line entity. From what it seems like, there's no need to create unique names for each you spawn.

Battle Line Actor/Squad: The name of the entities the battle line will apply to. Inputting an actor name means you need to have NPCs with the given name (recommended is to have something like 'combine_*', where * is a number after assigning a targetname to an NPC - use console commands or my name assigner addon to do so). Inputting a squad name means you need to have NPCs in the squad (in which you'll need something to assign NPCs to squads - use an addon which has NPCs assigned to squads by default and use that squad name or use a squad assigner addon like my own).

Standoff Name: The name of the standoff entity. Like the battle line name, from what it seems like, there's no need to create unique names for each you spawn.

Standoff Target Name/Class: The name, or class, of the entities the standoff will apply to. Inputting a name means you need to have NPCs with the given name (highly recommended to have something like 'combine_*', where * is a number after assigning a targetname to an NPC - use console commands or my name assigner addon to do so). Inputting a classname means all NPCs belonging to the class will listen to the standoff.

Search Type: How the standoff entity searches for its NPCs to affect. 'Entity' will search for NPCs with given name as stated by Standoff Target Name/Class. 'Classname' will search for NPCs with given classname as stated by Standoff Target Name/Class.

Note: This is highly experimental for me, and not even I know how it all exactly works. Do let me know if there's any errors with this - it'd be much appreciated!