UT99 was the first real FPS experience I had. My friend invited me to a LAN party (also first time), and the whole thing was mind blowing.

People all over the house shouting and laughing.

I have a distinct memory of someone attempting what you just described, but my friend just happened to be ready and he sniped the redeemer right as it was shot. Big explosion and nothing left of the player but a scorch mark on the building. I laughed myself to tears. Good times.