Neither in MoH, nor in RTCW can you talk about "realism". Not with that kind of Sniper Rifles, Rocket Launchers, and other stuff. At least RTCW has a class system, which adds some teamplay.
If you want a realistic WW2 Mod, see
www.dyofodefeatmod.com for Halflife. Beta 2 might come out tomorrow...mor real then you ever thought it'd get.