Who made the Castle walls with seige Tower?

I have made a good map using some castle walls and seige tower someone modled and put into a map, I downloaded a map with them in it, it was not really a "playable" map, just one for people to download and use the parts, after a while I was looking through my maps and found it and had an idea, however there was no credits comments in game or anything, I think the models may be called chumpwalls or something... but I would really like to give the guy who made them credit before I put them online, I downloaded them from a thread in this forum, it was not in the downloads section, can anyone help me out?

Tha_chump made them.

Thanks, I shall add him to the credits...