Yup Slav m8, they have new maps, weapons, vehicles etc, tis a total conversion.
Not sure what you've done to get what your experiencing, did you run the mod but join a normal server maybe? There are filters for custom games you can select on the right of the select server screen to make sure you only get the servers running the mod.
As an aside, I've just taken a bite of toast with a rather mossy aftertaste. Time to check the sell by date methinks.