I'm a new guy to half life mapping and I've only recently become familiar with Hammer, so some of the deeper features I haven't gotten comfortable with yet. I'm trying to make a map using a series of connected pipes large enough that the players could move around in. The problem shows up when making T intersections and turns. I've tried several techniques using cylinders and carving that look good in the editor, but the results never look right in-game. Does anyone have any experience making pipes like this?