Before all of the lack of Hawkeye in Infinity War madness spread, The Russo Brothers explained that he was in a different place after the events of Captain America: Civil War.
Apparently, Hawkeye had a pretty unique reaction to the fallout and that reaction will be told in the upcoming Infinity War.
Some fans have gotten pretty angry that Hawkeye isn’t around while others have taken a more creative outlet for their grief, doctoring Infinity War posters to feature the character.
The Russo Brothers are keeping a tight lid on the secrets of Infinity War and they, along with the rest of the cast and crew are doing an exceptional job.