>>527264359
It's self-explanatory isn't it?
Every story mission used to be launched through the HDD system, with a "normal" mode that gives the main rewards and a "hard mode" toggle that gives its own set of rewards, which means every mission gave 2 instances of rewards
Now that the HDD system has been scrapped and that missions are just non-repeatable chronological "story quest" we don't have hard-mode mission and their bonuses anymore