Worst-case scenario: the UEd Goblin wipes the map and burns down your house.

From Unreal Wiki, The Unreal Engine Documentation Site

[edit] Weapons Firing Flowchart: Instant Fire

This chart has been integrated into Firing InstantFire Weapons.

http://www.tdsfa.org/trystan/InstantFireFlow.jpg

Boxes with a grey background are where the instant fire flow and projectile fire flow diverge.