Red Dead Redemption is a great game. I feel a bit petty criticising anything in it, but I found the in-game weapon selection infuriating. Everyone I’ve seen play it has had a similar response too; it’s fiddly and unintuitive.
The idea is good in theory; you rotate a selector around all your weapon types in a neat revolver-style menu. Except the selector moves very slowly; it takes a lot of effort and care to move the selector from weapon to weapon. Doing something as simple as changing a weapon shouldn’t require this much effort or dexterity.
After being blown apart (and occasionally mauled to death) trying to change weapons this way, I quickly opted for the far more conservative but far safer method of Start > Weapons.
In the heat of the battle, I’d rather use the left and right D-pad to cycle through weapons individually: just like in all the Grand Theft Auto franchises. (In fact I wish Rockstar had kept the controls as close as possible to GTA; I was also surprised that riding a horse used quite different buttons to those used for driving cars in GTA).
This certainly doesn’t ruin the brilliance of the game, but for me this really stood out as a bit below par, especially given how brilliant the rest of the game is.