This is a very important/helpful tip that has helped me.
Dirty bomb is a game about movement, speed, and strategy. Without any of these components, you’re basically screwed.
Aiming Down Sights or ADS can be helpful in bad situations, for example, Long range shooting, but medium and QC range never ADS.
You need to move around to be a harder target for your enemy to hit, if they do not know how to maneuver or straif, you’ll have an easy head-shot target while they’re having trouble even getting a hit off you.