Welcome...
If you are looking for levels to download, you will find all of my Half-Life Deathmatch maps here.
If you should happen to like (or dislike) playing any of these levels, please do send me a note. Without your feedback, I cannot tell whether I am doing a good job with my level design, or a bad job.
Based on the access logs for this site, it appears that more than a few people find their way here while searching for help with either the Hammer Editor itself, or one of the many facets of getting a level to work properly. While I would hardly call myself an expert mapper, I have learned a thing or two in the process of making my levels, and I feel that I can probably answer at least a few of the questions they seem to be asking.
To that end, I present my Half-Life Mapping Tutorials in the hope that they may be of some small assistance. Some of this information is easily found on a dozen other sites; some I really struggled to find. Some I have not figured out yet, making these tutorials, in some respects, a request for help -- consider them a chance to share your knowledge!
Every so often, while building levels, I have encountered problems which did not seem to make sense at the time -- or problems which had solutions which did not (or still do not) make sense. Perhaps the results of my troubleshooting will save somebody else a few hours of stress and sleeplessness: here are my Half-Life Mapping Problems.