This plugin for linear or open world projects. It uses tag based character detection so that any character with the specified tag will be able to trigger the spawn. It also includes a tag for build parts detection so when AI should spawn it will detect any build parts with specified tag so that your AI won't spawn inside your buildings.
Multi-Layer AI Spawner (in-editor) can place actors or individual spawner in buildings or houses and as well as on terrains.
The optimizer uses significant manager to process the distanced AI optimization with many options. It uses array with options so you can have as many configs as you want for specified distances.
The Raid System includes many features. You can spawn actors or individual spawner around specified actors based on timer or trigger it manually.