A post to the Bethesda.net Forums outlines the changes in a multiplayer balance patch that went live today in DOOM, id Software's new shooter. They also explain the reasoning for the update and give details on the next game patch, which they expect by the end of the month:

We hope you’ve been enjoying your time playing DOOM! It’s been less than a month since launch, but the team at id Software has been hard at work preparing to deploy DOOM’s next game update, which will arrive later this month.

In the meantime, today we are releasing a multiplayer improvement update for DOOM. This includes rebalancing of some multiplayer weapons based on your feedback: the Chaingun, Rocket Launcher, and Combat Shotgun. This update will also reduce the wait time between matches to 60 seconds. Last but not least, Clan Arena and Freeze Tag will now require the winning team to complete 5 rounds in order to win the match. The multiplayer improvement update will begin today at 10:30 ET —this is a server-side update, and will not require a download, though it will require a server outage, which we anticipate will be about an hour. As always, we appreciate your feedback and we hope you’ll continue to let us know your thoughts.

For DOOM’s next game update, we will be releasing the patch notes later this month, which will include several improvements and features. We thought it was important to share some of those improvements with you now:

• Added Photo Mode for taking in-game screenshots
• Added Classic DOOM weapon placement/view model option (1st person view option)
• Added new Snapmap features (including skybox windows) and AI pathing and logic fixes.
• Fixed various bugs including players accidentally triggering Dev Mode and Trophy/Achievement bugs (IDKFA, Every Nook and Cranny).

These are just a few of the improvements and fixes coming later this month, but we wanted to provide an update as soon as we could. Thank you all for your continued support. We greatly appreciate you taking the time to provide your feedback. We hope you’re enjoying your time in-game and we can’t wait to share more with you soon.