Heat Maps

[gekko]

Hey,

I'm doing a research project and I'm trying to find games which use heat maps to visualize stats. I know Bungie uses them for Halo 2 and 3, and they make them available online to other players. I also know Valve has released them at one point to show death concentrations in TF2. I've also heard Call of Duty: WaW uses them, but you need to link your account to the game to see them.

Does anyone know of any other games which uses heat maps (either internally at the studio for balancing or other tasks, or made publicly available to the user?). Searching for this on Google gives 98% garbage, so I was hoping some of you may be aware of them.

Thanks.