Animated Spray : In TF2 Caliginous Caper - To Warn The Engineers Allows 2-Way Teleporters
Caliginous Caper is a nightmare endurance mission available on the Coaltown Event map. This mission has only one incredibly long wave, Wave 666, consisting of 911 enemies (not counting support-only enemies) and 9 Tanks with no checkpoints whatsoever.
Even so, the engineer will not upgrade the teleporters to 2-way possible.
For that, I made a spray.