ginge,as of NOW the procedure for any military personnel in the open during a nuclear attack is to close your eyes,lay face down with your head facing the blast with helmet covering it and wait for the blast wave to pass over you in each direction,nukes dont ALL have 100 million megaton charges and the blast wave goes out beyond its lethal destructive range.
what would you suggest instead of a table?as there aint much time to run to shelter if the bomb has started falling from a plane!