Every player who are known with Overwatch heard about the Flanking term. Heroes like Tracer and Genji are the most known flankers by the overwatch community and if you are the maining Support role, then you probably hate such heroes (but they are awesome for Overwatch Boosting, according to https://expertboosting.com). In this article, I will tell you everything I know about Flankers, so this guide will be useful for both of you, who are looking for a guide that will teach you how to flank, and for the guys who want to learn how to counter them. After all, if you want to overcome your enemy, you need to understand him.
The main mistake that is all newcomers is doing is that they think that Flanking in Overwatch is just a process of getting in the rear of an enemy team, but in the reality, it is much bigger and dynamic than just getting in the flank of an enemy. In Overwatch, Flanking is about attacking an enemy team using the advantage in positioning, while they are being distracted by a teamfight. Usually, flanking is attacking enemies from behind, but Overwatch is a little different game, most flankers use sideways to ambush an enemy or could even attack from above. The Key is in attacking from the non-usual position, keep away from the rest of your team and do not enter the line of sight of an enemy.
Flankers are awesome because they are able to quickly delete Supports or squishy DPS heroes, buying a couple of seconds for your team to conquer the map objective. You will be able to deal serious damage to the enemy team without any attention, so it could be considered as free damage. If you are good at flanking then you will be able to quickly kill somebody and retreat before your enemies attack you back. Add an advantage of continuously putting pressure on enemies, who are already dragged into teamfight, and you will understand why it is so great. You will keep enemies stressed and stressed enemies would make mistakes, deadly mistakes. Use flanking to find any possible opportunity to deal damage for an unexpected enemy and distract healers from their main task.
But do not think that flanking is about blinking behind the enemies and firing everywhere you could. Timings in this matter should be extremely good. If you will dive into the enemies while they are fully focused on your team, you will have every opportunity you want. But if you will not time your flank with your team, then every face will be turned into your side and you will be annihilated in a second. Enemy's attention must be split, otherwise, it could not be called as Flanking. To succeed in flanking you need to start to put pressure at enemies as soon as your team will make a move. They must drag the attention of, at least, main tanks and damage dealers. Just let's take Ana as an example, if you will attack her while she has every cooldown available, then you will quickly feel grenade and sleeping dart on your face. In this case, you will be forced to use a ton of cooldowns to avoid certain death. That will waste a ton of time and will make you vulnerable.