I'm not 100% sure what you're asking for but I think we are more or less on the same page. The main area where I disagree with you is that I feel that those that complete 'x' mission on a lower difficulty should not get the same loot as those who do it on a higher one. Having said that I do feel that every mission in this game should have a modifiable difficulty level set by the gamer ( Lv.10, Lv.15, Lv.20, Lv.25, Lv.30, etc ) and then those difficulty levels should have further multipliers ( like Halo's skull system ) that is once again set by the gamer. Obviously the higher the difficulty Lv and the more skulls you have active should boost the quality and quantity of the loot you receive but gamers who choose to do these missions on the easiest difficulty Lv should still get something in return for there time or effort. For example say someone chooses to do a Lv.30 Nightfall mission solo with 3 out 7 skulls and active and he succeeds he should walk away with a guaranteed Legendary item, high Vanguard rep and marks and a small fortune in strange coins ( 25 or 30 ). The gamer who has a Lv.25+ character and choose to do the same Nightfall mission at lv.15 with no skull active will not get any legendary gear, only a handful of marks and rep and maybe 5 strange coins. The same Lv.25+ character who chooses to do this Nightfall mission on the lowest difficulty setting should not get any new gear, maybe 1 vanguard mark and vanguard rep and only 1 strange coin but at the end of the day he still gets something for his time and effort. The point of the system is to always reward the gamer for their time and effort. The other part of the system is transparency on it's reward system, if gamers know for a fact that the higher the difficulty the greater the reward it would encourage more gamers to experiment more with the difficulty levels and modifiers so that they can find that sweet spot where they remain challenged without feeling overwhelmed. My main issue with the current system is that the only way to earn guaranteed strange coins is in the Nightfalls and Bungie selects the difficulty level for you and chooses the difficulty modifier for us thus forcing everyone to play at a certain Lv that they think is norm and not everyone who plays Destiny is a massive Fps fan, not all of us have a lot experience with genre. Instead of cranking everything up to max difficulty allow me to slowly work myself up to it at my own speed, stop trying to force my hand by pushing me beyond my limits. The community at large would get more milage out if the game if it were more flexible and customisable to players individual tastes and skills.