Team Fortress 2

An Unusual Mod

Straight to the point

I bring unusuals up since I am the author of the mod, An Unusual Mod. This mod takes certain particle effects in Team Fortress 2 and amplifies them to make them over-the-top and impressive. That was the intention, anyway. Currently it is not up-to-date, and it has not been for a while, however I am still working on the newer version when I have time.
I have a video here that covers most of the visual differences.

As a side note, one can relate the particle editor in Source to the particle editor in Unity. They are very similar, though Unity is far more up-to-date as it is newer.