This prefab contains a infoplayerstart entity for the purpose of helping the mapper determine where the triggerpush entity will push. After positioning the prefab, check the angles of the triggerpush entity and match them to the angles of the infoplayerstart entity.
Imagine the infoplayerstart entity being pushed off the trigger_push entity.
Please install the decal to your materials folder.
EDIT: Removed Mac OS X elements.