CrateDM3 v 1.0. The creator of this .zip file has no affiliation with the original author of this mod. This file is a reupload, as the first file was incorrectly uploaded to the wrong game.
To install, extract the CrateDM3 folder to your Quake 3 Arena folder ("...Steam\SteamApps\common\Quake 3 Arena"). Click on your mod menu and select CrateDM3 to launch.