Hello, Pretty sure this isn't a game issue, but more of a completion issue. I cannot do a heroic adventure on Mars because I have not completed every regular adventure. I think this is kind of a pain because I should be able to play and adventure for the first time on heroic difficulty. It is clear that this is character based since my titan can do heroic adventures but hunter cannot as I have not done every adventure with him. If this could be something that is account based instead of character based, that would be great. Just find it frustrating that I have to do 4 adventures just to do 1 heroic adventure.
Yes, they are character based and yes you have to complete them on normal to unlock heroic