All I'll say is that if you are skeptical, watch the video evidence.
Before we get started
A lot of people seem hate on Rangers, and this is most likely because of the average Longbow using Juvenile Brown Bear shitty pug that we all know and hate. When played correctly, Ranger is a ♥♥♥♥ing monster.
Armor and Trinkets
Skills to Have
Hopefully this guide serves as a demonstration that bad players have soiled Ranger's reputation for all of us, and if you want to break free of a stereotype, you've got to do some work to prove others wrong. Here are some DPS tests for you if you are still skeptical (although this footage is now outdated):
CoF World Record in 5:27