The Vietnam War megagame Lost Youth will be held at Anerley Town Hall on Saturday 15th September 2012. There's still a few spots open if you want to experience this game about asymmetrical warfare 'in country'. To give you a sense of the possible roles look at the provisional casting.
There are two more megagames coming up later this year:
End of the Beginning - an operational megagame on the Battle of Alamein, being run at Anerley on 20th October
Urban Nightmare 2 being run at the Royal Armouries, Leeds on 17th November. This is a more northerly venue than usual so if you are from oop north, take this chance to experience a zombie outbreak from the wrong side. The game handbook is downloadable from the website.
If you want to know more about what megagames are, have a look at this introduction to megagaming and my account of the megagame on Operation Goodwood last year and my examples of Operation Market Garden and Godzilla in Amsterdam (which is familiar in style to Urban Nightmare).