I started Cod right as WaW was hitting its peak, I never got COD till MW2 came out and I wanted to try the older ones, but I never got addicted to it tbh, it felt too different from MW2 so I stuck with that.
Zombies was awesome with friends, but I only had about 2 or 3 people who played it on WaW, since everyone bummed off COD4 at the time, so I was mostly stuck in 3 player private lobbies, or I'd find people on the IGN CoD forums to play with, they were cool guys too. I haven't been there in years, damn.
Were you on SNN mostly? Der Ries was where it was at fam, even the fucking easter egg song was badd ass, and the pack a punched STG44 >>>>>
Edit: I forgot the woman who did the easter egg songs, she was a heavy rock singer and her songs sounded so fucking badass.
I remember WBD on Five too