DOD:S runs just as well as CS:S on my system. Base 13" MBP mid 2010, OSX 10.6.4, AA off, 1280x800, med to high settings (whatever it 'recommends') and I'm getting 40-70 fps drops to 30's in heavy stuff. I had to change gl_bufmode 0 (like in CS:S) and my frame rate picked up.