Half-Life Episode Two begins exactly where Half-Life ended, after accepting the job agreement with Gman Gordon freeman is sent back to the Black Mesa Research Facility, why? Its up to you to find out.
This is another tool I developed for use with my ongoing project HLEP2. It auto generates "detailtextures.txt" for the detail file generator the Trinity\Abyss engine use.
Glad to see you're still developing for Episode2.. That's fantastic!