Yea it isn't amazing I know just saying it adds a little more fun to the game blowing up a car someone might be hiding behind.
Wave mode seems like fun also, would be really awesome if you can co-op it as well. I hope so.
Furthermore, these trophies have really creative names. 'Headbanger' and 'parking violation' are my favourites! They're almost as good as SOCOM:4's 'noob' trophy.
Which is good I think, a lot of people don't like online trophies.