Light rail for sure. I wouldn't park at the MOA though. I parked there for the ASG and it was kind of a hassle (I needed the little boys room, which is why I parked there). Anyhow, there are 2 stops between MOA and MSP airport which have parking lots and are much easier to get in and out of than the mall. Its about a 40 min ride to the ballpark so plan accordingly. I do believe there is an "express" train for games though