I know this thread is a little dead... but I just had to comment on it...
I don't think there is any other game that I have ever played that has mad me nerd rage SO HARD other than the modern warfare games. Playing MW3 is ridiculous. This *$&# happens to me nearly ever single game as well (I have a good connection so I guess I'm the host nearly every game). I have to consistently get the jump on my opponent by AT LEAST 2 seconds or I'm going to end up dead for sure.
On of my favorite classes to play is using a silenced pp90 w/ rapid fire and blind eye/assassin/stalker for perks. Using an smg and stalker you move pretty quick while ADS, so I usually just stay ADS constantly when moving. Even doing this when someone comes around a corner in front of me I am usually the one that ends up dying. I've always been pretty good a video games, and my reaction time is great (I usually never have problems in any other games that work well), but it MW games I pretty much have to be shooting at someones back if I expect to kill them.
I will be standing there ADS like I mentioned and someone will run around the corner. I'll immediately start firing, then a couple seconds later after I've fired about 10 shots close range, I will get killed by what I like to call "the first magic bullet" the enemy shoots, since that is all I see.
Then I watch the kill cam and it shows the enemy run around the corner about a full 2 seconds before it shows me start shooting, THAT IS IF it shows me shoot any bullets at all. All the while the enemy has come around the corner, seen me for about 2 seconds and it shows him fire off like 5 shots and kill me.
I'm not afraid to admit it... YEAH I AM MAD BRO
I'm really surprised I haven't broken something this pi$$es me off so bad.