I would like to suggest milestone awards.
First maxed one-star
First maxed two-star
Etc…
Reach 10 total ability points on 5 (or all) one-star
Reach 10 total ability points on 5 (or all) two-star
Etc…
First level 50 one-star
First level 85 two-star
Etc…
Winning streaks awarding heath packs.
Awards would be substantial hero points and iso-8
Reaching ability upgrades awards would be Iso-8
Reaching level upgrade awards would be Hero Points (like 500) or guaranteed token for cover not already in posession.