*Disclaimer* RDR is an amazing game, responsible for many hours of lost sleep (11A.M. to 3A.M. one day). Now, I'd like to talk about some of the faults I found in the game that kept it from being a perfect 10/10
-Inefficient controls: sometimes I feel like the game is designed to be played by people with four thumbs, like shooting on horseback while maintaining speed. The weapon selection menu should pause the game like in Dragon Age; I've died about 10 times because I was trying to change my gun and got shot down because you can't move while in the menu.
-Not enough information in the menus: after the initial tutorials, there is no way to access them again. I found dueling to be extremely confusing and there was no explanation of it in the game menus or the instruction manual.
-There should have been more side quests: just add a few more quicker and more easily accessible side quests.
-Making money is extremely unbalanced: sure, you can gamble at poker or blackjack, but that will take at least half an hour per game. Playing five-finger fillet takes one minute and nets you 100 dollars. Easily spammable.
-Not much incentive to explore: I spent 90% of the game on horse trails or railroad tracks because there was no apparent reason to explore the game world. Perhaps if the unexplored areas were blacked out like in WoW, I would at least have a reason to explore.
-Combat is somewhat cheapened by auto-aiming: every encounter I was in, I just tapped LT, aimed an inch up, and I got a headshot. It was almost too easy. Also, dots on the radar are too big to accurately tell where they are.
-Glitches: On multiple occasions I found a bounty on my head for no reason whatsoever and randomly failed missions as soon as they started.
-The save system leaves something to be desired.
If you haven't bought this game, don't be discouraged by this list. Red Dead is awesome and these are just little complaints. You must buy it.