Edward Poole is referred to as "a former operative of MI6." Edward Poole was played by Roger Moore, who also played another MI6 operative, James Bond.
Sydney's fights Sark using a Latajang, a specific Indonesian weapon.
When Vaughn and Sydney set up the exchange with Khasinau's representative, Vaughn is accompanied by an operative who had a custom made Remington 700 sniper rifle.