This is how beta testers helped improve Call of Duty: Black Ops 3's multiplayer

Treyarch is rather pleased with the feedback received from the Call of Duty: Black Ops 3 multiplayer beta, and has provided a list of changes made thanks to testers. According to design director David Vonderhaar, some of the design changes include: a nerf to the Black Hat equipment; putting a player into Rejack now counts