Superb as Usual
The gameplay and graphics are as usual very nicely done but the music is the one feature thats gotten me thinking.
The first metro siberia had somesort of Techno music going on and that actually suited the whole feel of a busy industrial centre
But the music you chose for this one also suits it in a bizarre sort of way. It was quite laidback and it actually helped me concentrate.
So full kudos on your music selection for these games. You've got good taste =D