You can avoid the problem... news - Citizen Arms Mod for Half-Life

You can avoid the problem only if you open the console and write this command: map ca0 .I think the problem is in the names of the firs and second map.But I don't want to compile the second map again...I hope it will work to you.I also want give more attention to my second mod: "Xen Mission".Give it a look.My plans for it are to make it a puzzle mod.