I'd say it's when you start off well in a game but you know because how well you're doing that soon the other team is going to be loaded up with armor/nailboards/bombs/molotovs.
Smokebomb + shiv. I just hate how helpless you are xD
Also molotovs or bombs when I am not even close. One time I died because of the ground shaking impact of a bomb and the guy next to me died as well.
I hate getting killed by a 2x4.
Yesterday, it was last round in Survivors,we both won 3, they won 3 and it was me and my bud last alive against two other people. My friend gets downed and i couldnt revive him, there was no cover and they were right in my face. I killed one somehow, and i had a little bit of health left. I pull out my shotgun, with only two bullets and the last man standing is right in front of my face, trying to revive the guy. I shoot once, **bleep** shot hits his HELMET because he moved last second. I shoot again, hits him, not enough to kill. He magnetizes and hots me with a stick before i could run away. I was so **bleep** **bleep**.