COH is company of heroes, and it is definately one of the best RTS to ever be made, period. i would highly recommend you getting it, its been out for a year or so, so u can get it on steam for like 20 bucks... theres a couple of expansions out as well.
you could say its kinda like command and conquer, but which much fewer units, and much more tactical. you move your squads around into and out of cover, buildings, etc, use MGs to suppress and pin enemy troops, you have tanks, at guns, arty etc. you have to use your squads tactically, not simply just point and click.
first mission: http://www.youtube.com/watch?v=_w7Wv-0_cII
some gameplay: http://www.youtube.com/watch?v=gJboEnxWxBQ&feature=related
the first COH has american and wehrmacht sides; the 2nd expansion added the british and 'panzer elite' (basically panzerlehr) and the tales of valor expansion added a couple more campaigns
TBH, my ultimate game would be a CC/brothers in arms/call of duty hybrid. itd be like bf2, where you can have one player as commander, with the top down view of CC. but then in the actual battle, you have players as squad leaders, commanding squads like in BIA, FPS style. of course youd have AI squads, AI tanks and guns, etc, but ppl could take part in the battle in first person. someday....
Really? You enjoy CoH's gameplay? I personally think it's quite poor for a WW2 RTS...I mean CoH is just basically Dawn of War with WW2 skin...so you basically get gameplay ala DoW with tanks firing at point blank (infantry also, without melee...at least DoW had infantry melee) CoH introduces cover...but DoWII now also features cover.
Also...base building and resource gathering (via capture the flag?) is a joke for WW2 scenarios...CoH:Tales of Valor without base building is a bit better.