Hello.
Lately I've been working hard on getting all insignias (which I've now done) and I needed a new personal challenge. My new challenge is to get all the achievements for BC2. The only one remaining is to get 20 kills using Destruction 2.0 (collapse a building on someone). And I'd like to know if you guys have any good tips on how to get these kills (other than just shooting M203s or rockets around you).
Any help would be very appreciated.

For me, Destruction 2.0 was not a big issue since I usually pack mortar strike with my recon kit. In rush, it isn't too hard to get Destruction 2.0 kills as an attacker on an M-com building if the building comes down while the M-com is armed.
But, I had some troubles with legitimately getting a couple of the multiplayer achievements. All I can say is: if you are having a lot of problems with an achievement (for me it was the non-guided RPG to helicopter achievement), hop onto an empty -TTT- server with three clan mates (so scoring will be enabled) and have them help you get the achievement. Another advantage to this is that you can also help populate an empty -TTT- server at the same time as the numbers will attract other players.