The basis of it is
You score 1 point per frag
You score 1 point per thaw of a frozen team mate
You only win the round when you have frozen all of your opposition
What are the chances of seeing it in Nexuiz? is there any?
For anyone wondering what it looks like or plays like: Yes there is a all weapons variation of it I just prefer the insta version much more.
http://www.youtube.com/watch?v=VvmdIDOAuqk
I'd really like to see this along with the sounds of a scoring team, that could be implimented into CTF and TDM also.
How about headshot sounds for all modes also? and some sound effects for hard almost impossible air shots?
I also miss the old sounds from getting 10/15/20/25/30 in a row. Would be nice to see those return. Maybe I'm totally missing something though and they are still there. I would have suggested oddball but it seems thats already being done

If I hit the wrong section I apologize, I saw there was some other mode ideas posted in this area though so I just followed that as a guideline.