I just played on a server that uses the diceroll mod
Here's how it works:
When you say diceroll, some random effect happens to you, like 45 seconds of crits, double health, you get dropped to one health, instant death, low gravity
There was also the command kamikaze which turned your character into a bomb that would explode in 10 seconds. You go melee only and start glowing and losing health as the countdown gets closer to zero.
Medics could infect players and cause their health to drop really quickly
Then the server admins decided to turn on something called Excessive mode, this is when the fun started. The server was full and everyone had unlimited ammo and fired only crits at a ridiculously fast rate.
Everyone also moved fast and had lots of health and quick regeneration, so it wasn't instant death from one hit.
here's a demo I took during one of my lives in Excessive mode
Excessive mode- demoman.dem
EDIT: demo won't play unless you get rid of the spaces in the name, my bad
what do you think? crazy huh