the rpg stats are from the ibprobattle mod. You can get all info on that from here : http://beta.havocforums.com/ It is still in alpha stage though and is being being worked on and improved regularly.
on my old pentium II 233mhz I use ultraHLE because it runs really fast via the 12mb voodoo II card. On my newer machine I use 1964 and it runs goldeneye brilliantly.