"Those who say the Black Widow’s fighting style is just movie bullshit can see the above. ^ Shit is terrifyingly real." (gif) (Not a video game related pin, but there is only one board of mine this could ever belong on- Fight Like a Girl!
Take down- Get out of the path of the bullet. Isolate and neutralize the weapon Neutralize the opponent. The rest is all style.--Believe it or not, this is almost all Aikido, though he's using some force, since his attacker has little momentum.