Now, as you can run Xen maps from the menu, and not through the console. Above the maps also worked a user Hecu Marine from Black Mesa forums and thanks to him, you can see this update. Do not forget, this update should be copied already installed Black Mesa: Xen v0.1
... Sorry for any errors in the text and my terrible English, I translate the text of the Google translator
Always happy to see an update to this ;)