Me and my friend were playing through the last level of RSV2, because he was retarded and couldn't beat it. So we had a system going where I would just unload on the helicopter, while he would take out the guys. Or so I thought. So, on the second section of the helicopter fight, I was shooting it like a boss, while he was doing something else, some guys emerged from across the tennis court, right before the helicopter launched its rocket to end the second part of the fight. I back away because I know what's coming, and the missiles hit the little thing I was hiding behind. I was at the wall behind it, so I lived. I went back to where I was sitting, and started to pick off the guys, who had amassed to critical levels. I think during this time, my friend was standing around being useless, because he wasn't doing anything. Next thing I know, a grenade lands right next to me. I proceed to not do anything because I thought it was behind me. It exploded and I died. The spawn camera goes to my friend who's just standing there, spinning or some shit.
tl;dr, my friend is retarded and didn't shoot the bad guys, so I died.
We did go on to execute the BBEG. It was funny, though. When you execute him, you're supposed to aim at him for a minute, then shoot him. We skipped that entirely, so while the BBEG was lying on the ground dead, we were saying, "BBEG, we don't have to do this!". Right after the mini-cutscene ended, we fired. My friend had the 92FS (The weakest semi-auto pistol in the game), while I had the Raging Bull (The strongest semi-auto in the game). He fired first, hitting the guy in the chest. The guy didn't die, but it looked like he was hit by a shotgun, there was so much blood. My friend reloaded because that was his lost shot in the clip, so I took the shot, and gutted the guy. He flew like they do in the movies, arms and legs forward, while the body is propelled back. About 10 seconds later, the two teammates round the corner. My friend both shout at the same time, "WHERE WERE YOU?!" See, during the helicopter fight, your teammates are strangely absent. The fight is about 5 minutes long, and it shouldn't take that long to exit a little side entrance.
tl;dr, weak pistols break tension, teammates are retarded.