Non-complete Cloak?

[Aspire]

I'd like to know if theres any way to make someone invisible, but in a matter that he still is somewhat visible, if you know what I mean.
Basically like still seeing slight contours and such.
For representing what I mean: VIDEO (http://www.youtube.com/watch?v=Hhq7-wo11h4)

[])rStrangelove]

Charon's Predators are using something similar i think: http://www.armedassault.info/index.php?cat=addons&game=1&id=1613

You could try and send him a PM how he did it

Also, these HALO model seems to use same fx: http://www.armedassault.info/index.php?cat=news&id=5195&game=1