If you are analyzing the tactical side of this episode, here is how Deku manages to survive:
Deku must rely on the 4th user's Quirk to dodge bullets he cannot see. However, Nagant's speed and volume of fire nearly overwhelm his reaction time. 20 : Hired Gun
All For One recruits her to capture Deku, promising her a world where her "dirty work" for the Hero Commission isn't necessary. If you are analyzing the tactical side of
He begins combining the Quirks of the previous One For All users more fluidly, such as using Smokescreen , Danger Sense , and Float simultaneously to survive Nagant’s onslaught. 3. The State of Society such as using Smokescreen