Here's a tougher achievement for you guys to get in Battlefield 3. In the level "Thunder Run", you take control of a big friggin' tank. Use it to take down six enemy tanks before you reach the fort, and you'll get 25G on Xbox 360, or a bronze trophy on PlayStation 3.
Check out this video for a great tutorial on how to get the deed done. On harder difficulties, it looks like this one could be pretty tough to get. I wouldn't know, because I played on Normal. Hard mode is for real men, not wimpy lady-men like myself.