What Was That Splinter Cell Game??

[sickcars]

Im not sure if some of you remember, but sometime before the summer probably longer, anyways I think it was called something like "Versus Beta" or something all i know is it was only online and 1 team had to sneak around and hack a bunch of computers and the other team had to stop them.

Anyways just wanted to know if anybody knew what the name was, as im looking to get it.

Thanks for the help.