There is so called 'Predator Mod' for CS 1.6.
You can play it on our server 'AIMaster.ru CS 1.6: Predator ID' hl.aimaster.ru:27011
Because of mod there are not so many suitable maps. We have only 10 maps in the set and 3 of them are remakes and only slightly differ from the originals. It would be nice to extend the set with new maps. We need small/mid-sized maps.
If you are a mapper and interested in I provide you more details.