Another good scene I have found, totally by accident.
This movie feature Hollywood A Class actor (bond girl Olga Kurylenko, Gary Oldman, Alicia Agneson (Viking and Clark)) called - The Courier
This scene is at the beginning of the movie, it started when a witness is being protected by a detailed headed by Simmons (Agneson) and a courier (Kurylenko) is delivering a case to them not knowing nor caring what it is, turn out that is a gas bomb sent by Oldman character (forgot his name) and it kills everyone in the room. The Courier confront Simmons and Simmon pull a gun on her and shot the courier, meanwhile wearing a gasmask and prepare to kill the witness. The Courier get back up and knock Simmon unconscious and taken her mask (which is very sexy IMO) and then rescue the witness. The scene ends when the Courier and the witness arguing in the hallway and Simmons come out again and the Courier killed Simmons in a gunfight.