Create an AI that's only available in challenges

Scenario

How do you prevent an AI designed purely for Challenge Games from showing up in skirmish and multiplayer games?

Solution

Normally your AI and related files go here:

multiplay/skirmish/

As the folder path suggests, those AIs will be available in multiplayer and skirmish games.

To make an AI that's only available in a challenge, put it here instead:

challenges/

AIs in the challenges/ folder won't appear in skirmish or multiplayer games, they'll only be available in challenge games.

When playing a challenge game, Warzone looks in challenges/ first before it looks in multiplay/skirmish/.

Be careful though: If you put a script in the challenges/ folder that has the same filename as a script in the multiplay/skirmish/ folder, it will override the multiplay/skirmish/ version for all challenge games!