No, ask anybody, BRX is a lot easier and faster than BXR.

When you press BRX, basically you are meleeing and shooting at the same time, but the shooting animation doesn't happen untill you press X.

So to answer your original question of "what does the X do?", what the X does is switch from the melee animation to the shooting animation, which triggers the death animation for the other player. When you BRX somebody, you don't actually see them die until about a half second after you press X. But they actually die when you press X.

The whole point of weapon glitches is that pressing buttons in certain combinations confuses the game by throwing too much information at it at once. All you're doing when you Doubleshot or BXR someone is creating a time lapse between when you kill them and when they actually die.

And that's why BRX is faster than BXR.

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