Destiny would need a lot more than just private matches/custom games. One thing that really hinders destiny from being an MLG game is the fact that it is not an arena shooter like halo is. (I'm not a halo fanboy I'm just using it as an example.) the reason being is arena shooters tend to have symmetrical maps (which would get rid of any map imbalances), weapons and or power weapons on map (which would promote map movement and positioning), and they tend to not have any or very little aim assist. Now you can have non arena shooters in MLG or at least have a large presence the competitive gaming scene. For instance CS: GO (Counterstrike Global Offensive) it is not an arena shooter and I would argue it is the most competitive shooter there is today. The features in that game are asymmetrical maps which are tested before being released and are normally very balanced, it has an objective for one team to complete and the other to defend promoting map control/positioning, and it has literally no aim assist or any other elements that affect your shooting. For destiny's case they are lacking on these elements. Some maps in destiny are imbalanced but none (too my knowledge) are really hard to play on. They would have to fix this because it would not be a good thing for potentially $100,000+ being given to whoever got the better spawn, aside from special ammo crates and heavy ammo crates destiny doesn't have anything to promote map movement. (Unless you are playing an objective game type of some sort, but I am focussing on just slayer game types) you can't use the ammo crates as an argument for map movement. They are too accessible and too spread out. For aim assist well destiny has taken it to the next level! Aim assist is looked at as more of a stat rather than a crutch. In my opinion if a game wants to be an mlg game it should have absolutely no aim assist and if it does have a way for players to turn it off whether it be in the settings or a game type with no aim assist allowing the person to practice without it. I don't like the idea of competitive game with aim assist because again in my opinion they shouldn't be considered pro's if the game does half the work for them. Another thing you have completely overlooked is that bungie is trying to cater this game towards a younger audience, you can't mix competitive gaming and young audiences. I don't mean to be mean or rude but young kids just don't care how good they are or who is the best player in the world. They just care about feeling really good like they themselves are some pro. So bungie adds on a ton of aim assist, let's them load out with one shot shotguns, and gives them a hammer that makes them indestructible. Sorry for the long post but I wanted to include most of the details.