MARKSMAN
[PHILZ NOTES UPDATED 3.7.2020] The Marksman is a class that’s underappreciated by the typical pub lobby but used often in comp/ranked. There was a patch (1.7.1) that buffed the Marksman fire rate and that made it really strong.
Some people use an auto-clicker with Marksman which is definitely a bad thing to do (in fact, I tried it myself to test the max fire rate). But I don’t think it’s even necessary nor even desired since you have a small clip.
I would say though that one of the keys to using the Marksman well is clicking fast. Then, you can beat Triggerman in 1v1 matchups with your faster time-to-kill.