I dunno if its the server or just me but as I play heavy and the round switches to sudden death I get the following problems happening:

1: Sweating Bullets

I got a firring muzzle on the screen (despite being unarmed) and I bullets fly everywhere.
Not a big issue but blocks haf the screen

2:Telekinesis

The Minigun floats in my face(again dispire it being melle only) when i move As if the heavy acquired telekinesis. Zero visibility when moving.

I had weird problems on the server last night too mate. Bodies were twicthing and flopping all over the place and slowly sliding across the level. I also got killed several times (from my perspective anyway) through walls. The weirdest one was when I killed someone and their body teleported right up in the air and fell on me .

Should bear in mind I play with the prediction netcode off so lag based weirdness does sometimes happen.

I'm always getting killed by stuff coming through walls. Not just this server.
It's usually a heavys' bullets going round corners, but I've been killed by a rocket through a corner once. And once by a rocket going through stairs

i get the minigun firing flash sometimes if I die just as starting to fire or something, i've had this on a few servers so i'm guessing it's an inherent problem...

Found out today that the hw gun (1 in 4 shots) and spy pistol go through thin walls. That explains that then. Floppy bodies still unexplained .

Does this happen every time wist? It was just a one off for me...

Bassically every now and then when im firing and the game turns to melle sudden deth. And only on Hydro for some reason.

I got the 'shivering cadavers' bug kinda creepy

Usually bodies start falling through the maps, and bodies start "spazzing" out and sliding across the floor after prolonged playing of the game. If you close TF2 down and re-load it, that should solve the problem.

I have a feeling it's something to do with the Graphics Card getting too warm and not performing to it's full ability. I'm going to get a new Graphics Card soon, because a 7300 LE isn't really a good card.

These are some of the bugs I've encountered, but they're probably because of the game.

Epileptic corpses.

A demoman that looked like a spy holding an invisible scattergun.

A pyro that looked like an upside down handgun that was flying around. Seriously, hardest backstab ever.

People on my team (Blue), looking like Reds.

Once when I was playing my guy randomly cloaked and got the disguise menu up several times during gameplay which was really annoying, but that's probably because my mouse and keyboard are years old.