This is just a quick public service announcement telling anyone who sees a site claiming to offer access to a Modern Warfare 4 beta to just ignore it.
A new site using the domain ModernWarfare4beta.com is trying to scam players by pretending to offer access to the non-existent game’s beta. Now most fans know to avoid this kind of scam, but given Call of Duty‘s wide audience not all are so clued in. Fusible discovered the site and confirmed that it has nothing to do with either Activision or Infinity Ward.
Steer clear of any site offering access to a Call of Duty beta, there has never been one and probably never will be.