Keepitclean said:
I go by one rule; if the game lets you do it, it's not cheating. So when people have a cry, I just mute them.
I think this is the main reason why people started quitting Modern Warfare when the glitches started to come out. Just because it's in the game, doesn't mean it's intended. When the developers come out and tell you bluntly that "you use this and we'll ban you from Live", I'm pretty sure that's a good indication that it's cheating.
That being said, I tend to agree with using any weapon in the game, so long as it doesn't clash with my above statement. Glitches are cheating, I think we can all agree on that, but using a weapon you've earned is a right you get (whether through pre-order -or- gameplay). To give an example, the "noobtube" in MW2 is probably one of the most frustrating weapons for me...
when I use it! The close-quarters nature of the game tends to make me always fire the blasted thing within safety range, so either I have to hit them square in the face or it's a dud shot. Seeing at it's a grenade launcher, I don't tend to aim and that just means I'm an easy kill as it reloads. Even if I switch guns I'm usually dead before I can react. Where as with the actual assault rifle that grenade launcher is mounted to I can easily get up in someone's face and not have to worry too much, as after my first shot, I still have around 30+ more rounds to go through, even if I miss.