I play Company of Heroes with a couple of friends, its a RTS genre. I have played RTS for a long time, since C&C and Warcraft. CoH is well built, you don't mine resources like previous rts's, you capture strategic points ( fuel, ammo ), these help fund your war effort and capturing more ground and fighting alot earns you more manpower and army size. You also get to pick the style your army will take, your choice is 3 trees of development, each leading to a different main weapon system ( ex: Defensive leads to 88's, Blitzkrieg leads to Tigers ). Units of note are the mighty Flak 88, the Tiger ace, Sherman Calliope, 105mm Howitzer. I found the best strategy is the defensive, this gives you 88's, you can make pz IV's and Panthers as your armour. I use snipers to extend my 88's sight range and a couple of 50mm AT guns and MG nests to prevent the 88 from being overwhelmed. My tank force is usually 2 Panthers and 2-3 PZ IV's, if there are air strikes I will substitute the PZ IV's with Whirlbelwinds. We typically play as a team against computer AI opponents.