The Avengers: Hawkeye
Hawkeye is a comic book version of Robin Hood, and comic book fans alike will ultimately compare Hawkeye to DC's Green Arrow. There are similarities but they are their own separate characters. While Hawkeye is brash, confident and a bit of a cocky douche he is also a skilled assassin. He has many tools at his disposal for what ever situation he is presented with. In fact he is also talented in creating weapons as he has modified arrows to be explosive or poisonous given what is called upon for the situation. Hawkeye was also a staple among the Avengers team for a long time and only left when his temper and ego led him to believe he was no longer wanted. He even entered into some relationships with some of his teammates such as the Black Widow and Scarlet Witch. Clearly he had something for the women that were not entirely good or bad. Captain America also trained with him in the art of combat making him into a skillful combatant in unarmed battle. Combine that with his world class arching and marksman abilities and you have quite the warrior on your hands.
Clint Barton's origins started off similarly to most heroes, tragically. He was orphaned at a young age when his parents had an unfortunate accident in a car crash. Thus Clint was sent to a children's home with his brother Bernard. He and his brother eventually ran away and joined a traveling carnival where they worked as roustabouts. Clint became friend with one Jacques Duquesne, who would later be known as the Swordsman, and Buck Chisholm, also known as Trickshot. The two trained him and when Clint saw Jacques counting money that he had just stolen from a bank it destroyed him. Jacques offered Clint a chance to be his partner in crime but were equally surprised to see him decline their offer. This sparked a fight that ended with Jacques leaving him for dead after falling from a wire high up in the sky. Jacques left the carnival, Bernard as well, as he took up their offer and was equally stunned to see Clint turned them down. Clint felt abandoned once again as now all of his family had left him, yet he looked to anyone for some sort of guidance. Buck stepped his role as Clint's mentor and later asked him to join in raiding a criminal named Marko. In doing so he severely injured one of Marko's henchmen, who in fact was his brother in disguise. The consequences of his actions forced him to abandon Buck and the two left each other on bad terms.
As years passed he continued to improve upon his arching ability and became an expert in the craft. He even became much more comfortable on his own. Clint began to wander the world taking jobs at random carnivals making money in costume and persona of the hero that we all know and love, "Hawkeye". Clint's view of his skills changed when he witnessed Iron Man saving the lives of some people at the carnival. At this point he felt he was wasting his gifts as he saw another man using his gifts to better the world. He took it upon himself to become a costumed crime-fighter, but as luck would have it on his first patrol he was mistaken for a criminal and hunted down. Soon after he met Black Widow, who was a costumed villain at the time working for her home country of Russia. She used her beauty to easily seduce Clint into making him think it was in his best interest to defeat Iron Man. He even began to develop some personal feelings for her, although she didn't think much of him. He attempted to do dispose of Iron Man but he quickly wised up and saw that he was being made for a fool. Instead, he hoped to join Iron man's team of Avengers. He had to find a way of proving himself so he found a way to break into the Avengers mansion where he convinced the butler Jarvis, to play the role of victim so that he could showcase his powers to them. All of which does kind of sound like something Robin, from Batman, would do to gain the respect of Batman. Wrong article, I'm sorry. Iron Man than vouched for Hawkeye, and he joined the new members of the Avengers that included him, Scarlet Witch and Quicksilver.
Clint continued on as an Avenger for years with his archery skills matching the superhuman abilities of his teammates. However, his over confident and brash attitude sometimes clashed under the leadership of Captain America, but the two eventually became good friends and teammates. He also at first felt attracted to his teammate Scarlet Widow, even to the point where he had trouble letting go of her when she got married to another teammate named Vision. For years later, Clint held a high torch out for Black Widow until she returned from her espionage career and told him straight up that she had never loved him. Although, her words said one thing, her heart said the other. Black Widow only told him that to keep him away. Despite everything, Clint stayed with the team for a very long time and almost never left. The only time he did leave was because he no longer felt wanted. His ego had been hurt after not being wanted, so he decided to take some time off. Eventually he would join a team called "The Defenders" in between his departure and eventually return to the Avengers. He did rejoin during the Kree-Skrull War, but due to his lack of superhuman abilities, he was passed over. This upset him greatly thus he took on the identity of Goliath with the use of Hank Pym's size altering particles. He hitched a ride with the team to join the team in their intergalactic fight. In their return trip home, Clint maintained the Goliath identity for some months after but ultimately returned to his normal Hawkeye identity.