Overwatch Boosting Cheap has a preliminary Assemble Your Team phase. Quick to move and quick to kill, Overwatch Genji is a nimble character suited for flanking and quickly taking out high priority targets. Competitive is a bit more complicated. You can't access Competitive until you reach level 25 playing in other game modes. Proper communication in games can be the difference between a glorious win and adding another L to your record. I firmly believe that if you pit two teams of equal skill against each other the team with the better communication will win 99% of those games. Overwatch Genji is a fearsome adversary in the right hands. His shuriken throwing is great for damaging from a distance, and his ultimate lets him devastate multiple targets quickly with a sword.
Then you’re either locked in an attacking spawn room (attackers) or instructed to set up your defenses on the objective (defenders). Taking objectives is important, but so is holding on to them, and then to play in each season of Competitive (each one lasts a couple of months; they're in the third season now) you'll have to play 10 qualifying matches. You’ll need to master his deflect, which sends all projectiles back to their sender. Genji’s powerful dash ability resets when he gets a kill, which can help you get away from danger. Even if your team is worse from a technical point of view you can still overcome that by working together as a team. Neither team can see see what their opponents chose until around 15 seconds into the game, so there’s a tiny element of surprise in every match.
To that end, defensive characters have tools that enable teams to hold key points on the map. Play those, and you'll get ranked according to your skill and your win-loss record. In all, Genji is more of an assassin that secures kills and harasses the enemy that a consistent damage dealer like some of the other characters in this category. There’s plenty of examples (in real sports and in esports) of underdog teams who have managed to upset stronger teams, and without exception teamwork is always one of the defining aspects of those victories. For the most part, you win and lose objectives by killing or dying. They can set up traps to slow attackers, or pick them off from a distance.
Then you can enter Competitive proper, playing with similarly ranked players for a chance at special Overwatch Boosting. Hanzo takes a bow and arrow instead of a gun. He’s a mid range sniper who can pick off targets and output lots of damage thanks to the Storm Arrow ability. Teamwork is achieved through proper communication, so knowing how to effectively do that in games can really improve you as a player. It’s pretty simple: if your team is taken out, you can’t be there to defend or attack the objective. You’re forced to respawn several seconds away from the goal when you die, too. Patience and good strategic planning will leave the enemy floundering against your defenses.