Accessing MW3 from app

Just downloaded MW3 early access. Why is it, that I need to open MW2, to get to MW3? The experience is really bad, especially with first start up. MW2 had to reopen because “update requires restart”, then after it restarts, I have to navigate to MW3 within MW2, so it can open up MW3. Then it restarts again, because “update requires restart”. Are we gonna have to deal with this moving forward?