Activision are continuing in their quest to release demos of their games long after they have been released instead of before release.

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This time the game in question is the million-selling Call of Duty: Black Ops.

The demo, which launches on Live and today, will give players to try the WMD single-player mission.

WMD drops players deep into Soviet territory in a dangerous search for a secret Russian based located high in a snowy mountain range.

By Ewan Aiton