An update on Bethesda.net has details on the upcoming open beta test for DOOM as well as an outline of post-release content for the upcoming return to id Software's shooter series (thanks Frans). They remind everyone that the open beta will run from April 15-17 and that no codes will be required to join in. They also explain what will follow once the game is officially released on May 13th, outlining plans for free and paid content, including a three DLC season pass:

We know the DOOM community has always been about great user-generated content, and that’s something we want to continue to encourage with SnapMap, an innovative new component of DOOM designed to make creating, sharing and playing new game experiences fast and easy. On top of being able to access and play new modes and maps created by your fellow gamers, id plans to offer content updates for SnapMap, including map modules; props and objects; additional features and functionality; AI enhancements; editing tool enhancements and more. Multiplayer will also receive content updates in the form of new game modes. Both of these SnapMap and multiplayer updates will be free to use and play.

In addition to the planned free support and content updates, we will also be releasing three premium multiplayer DLC packs after launch, which will get you a number of new maps, hack modules, playable demons, weapons and more. The first DLC will be available this summer and give you access to:

• Three new maps
• One new weapon
• One new playable demon
• One new armor set
• One new piece of equipment
• New hack modules and taunts
• New customization colors and patterns

Each DLC pack will cost $14.99 (£11.99 [UK]), or you can get them all at a discount with the Season Pass for $39.99 (£29.99 [UK]). Check your preferred retailer to pre-order the DOOM Season Pass.