Good war simulators?

I played the older Close Combat: First to Fight and liked it a whole lot. The whole "Ready Team Fire Assist" tactics and the way you have to lead your team tactically or you'r fucked, almost no health except for some very sparse medkits made the game experience a whole lot better than other single players. It was a bit to easy though but a great game.

Right now I'm playing Ghost Recon: Advanced War Fighter and oh boy, just what I was looking for.

It's hard as HELL and looks awesome. Even on easy you WILL get fucked if you don't play tactically. The levels are huuuge, UT war and onslaught seems tiny and it's all buildings and ruins and shit everywhere you have to think about where enemies can take you out. Damage is realistic so you won't live if you try to run and gun no matter how good your aim is.

Needs a beefy box to run though, I have a Q6600 Quadcore and Nvdia 8800 GTX and it's juuuust barely cutting it on high settings.

Anyone know of similar warsim games, heavy on tactical gameplay, no micromanegement shit, just staight war tactics with a small fire team?