Watching one of my best buds get a non staged private match 8 headshot collateral damage, and me getting 2 nukes in one 3rd person Rust/Dom game. Didn't call the 1st because there was still several minutes in the game.
I can't remember my proudest moment but I was really excited when I got The Grim Reaper title by killing 5 people with a single predator missle, that was awesome. Also I remember one game on Rust (a glitched game) I got 40+ kills and no deaths. When I called the chopper gunner in I literally got 20 kills in about 1 minute, they kept spawning and dying instantly. I got about 5 hard challenges in one go (Crab meat, cruelty, etc).
I'll agree with the first blood bet, we play all the time and my buddies and I do first blood and final kill bets. But my sickest was when I had a semtex kill at the end of the game long range on Afghan