I'm not sure players want just an enhancement core here and a couple of mod components there. I would definitely suggest possibility 5 per sub-rank on Valor and keeping the 10 hitting Legend is good. I would recommend doing this for Gambit and also reward up to 10 enhancement cores or mpd components on completing a powerful drop on the nightfall strikes (similar to D1) the same way Three of Coins would drop sometimes when completing the activity. Doing small repetitive bounties for materials isn't exactly enjoyable, so I think it would be more rewarding for earning materials from grinding out ranks and powerful gear drops. Powerful gear drops should be a smaller amount on the smaller activities, (heroic story missions, daily challenges, ect) and should be a few more for running the harder powerful activities, (Nightfall 100k, completing a raid, ranking up in the crucible or Gambit). I guess my point would be, make ranking up and grinding harder activities more rewarding by giving us different amounts of enhancement cores or mod components for doing the longer grinds. The grinding takes up a lot of time spent as it is already. Players want to keep grinding and not be side tracked by a lost sector bounty or a public event bounty rewarding literally a few materials. It's honestly takes the fun away from the real grind. (Crucible, strikes, Gambit, The Reckoning, Raids)