Sorry if this was asked before…
If I have 2 of the same character, and a cover in which both characters could use, when I redeem, which player will it go to?
Go to the cover you want to upgrade, and select the upgrade that way, if you hit the train button from the Cache I have no idea which one it will go to.
If you do it from the Cache, it will tell you there are multiple characters that could have that cover, and will ask you to train from the cover screen.