Hey there, I haven't been playing on XG1 enough to unlock him, but raceinfo + spectating suggests that the Flame Predator (that knife-only race, dunno whether I remember the name correctly) is really missing on core64. It's just that I'm some kind of a special player, don't get me wrong now - I'm playing normal as well - but on the other hand, I like to do things that other people don't do. This involves camping spots most players don't even know (not to talk about that they don't know how to get there), playing fan-only, and - knifing.
I guess the biggest problem with that race is that, once enough players unlocked it, 10on10s with 4 Predators each really suck. Well, you're probably more experienced concerning that issue if you've been playing on XG1.

okay, well first, its not called a fan, learn your guns or specify what it is, fan makes no sense.

You are either referring to the CT weapon:
Its called a famas, or also known as a Clarion, and it has absolutely no relationship to a fan, doesn't look like a fan, etc.

And it fires at 1100 rpm, making it the fastest firing gun in CSS, which is offset by its limited ammo of 25, and its lesser calibre bullets of i think its 7.62, not sure on that one.

Just for a reference, the p90, what most people think is the fastest, only fires at 900rpm. The AK47 fires at 600rpm.

Or you are referring to the TMP:
Also known as The Machine Pistol, it is in essence a silenced mac10, with a slightly lesser rate of fire, but also a greater innacuracy while firing. It fires at i think its 837 RPM, which is a fair bit for such a small 9mm ammunition

wow

thats what i call a hardcore css-er :|