DOOM Beta Keys

The DOOM FAQ for the multiplayer closed beta of the upcoming shooter has all the details on testing of the game. Though the keys to this were handed out long ago as a preorder bonus for Wolfenstein: The New Order, the FAQ includes word that this weekend they'll be handing free DOOM closed beta access codes at GameStop and EB Games Canada (thanks placid). Here's word:
Starting April 1 at 6pm ET, visit your local GameStop or EB Games (Canada) to receive a free DOOM Closed Beta access code. Codes will be distributed through April 3.