Worst-case scenario: the UEd Goblin wipes the map and burns down your house.
Template:Category package interfaces/doc
From Unreal Wiki, The Unreal Engine Documentation Site
This template defines content of game-specific interface-by-package category pages.
Usage
For stock interfaces only:
{{category package interfaces|Engine|UT3|Unreal Tournament 3}}
Custom classes and interfaces are not grouped by package on Unreal Wiki.