It's similar to AoE but stylized after modern warfare.
One of my favorite things about the game, is that instead of gold, stone, food, and wood. It's just money. So instead of 35 food and 15 wood (I HAVE NO IDEA HOW WOOD MAKES PEOPLE) it's a certain amount of cash.
The other favorite is that the USA Air force is untouchable... and... they have RAPTORS. One time I got bored, and made so many, the sky was literally black with all those things flying around (I admit, there were some helicopters as well).
I play RA2 a little, too. But, for some reason mine doesn't work over the internet, ive tried to fix it and tried everything, but it still doesnt work, so I gave up on fixing it. I play against my roomate every once in a while, Its a great game!