My first game as a returning player. I had played SM's and Squats back when the game was very new and then I took a few years off to go to college.
I came back into the hobby and spent about 6 months painting up a brand new Catachan Imperial Guard force. I brought every single painted model to my local game store and was completely annihilated by a chaos army.
He killed every model in my army by the end of the 4th turn and never got half of his squads out of their Rhinos.
In turn, I managed to kill one Rhino and I think three CSM's.
On another note, I beat him solidly two months later after I got back into my groove, but I didn't play it up too much since he's a Colonel and I'm just a Specialist....