How to Defeat Yelena Federova, the second boss in Deus Ex: Human Revolution
The second boss fight in Deus Ex: Human Revolution can be a tricky one. Take a look at this guide from Giant Bomb on how to beat Yelena Federova, the Mantis quick and easy. Make sure that you listen to the AI throughout the fight as well. It will be providing you with some tips of its own.