This medal can be gained by killing an opponent with a melee kill, and it must not be from the back (Assassin Medal) which is not really hard to do. Kills with the Energy Sword are also considered melee kills so they can also help to achieve this medal.
Related ThreadsWhers my beat down? - last post @ Oct 26, 2010
I can't beat Legendary...can anybody help? - last post by @ Oct 19, 2005
help with beating on legendary - last post by @ Oct 6, 2007
Has anyone actually beat every mission on Legendary difficulty by oneself - last post by @ May 13, 2008
How to beat Tarturus Easy "Spoilers" - last post by @ Dec 2, 2004