I don't know if all of your are trophy/achievement hunters but what do you think of this one.
Kill a Crusher without it damaging you.I was pretty lucky when I got, it was on the Evacuation map in a team death match it was already battered and I actually didn't see it at first. I was fighting off a soldier just about made it to, as I was backing up I got a little stuck in one of the sides of the ramp just before where you go up and find the flame-thrower, lucky for me that saved me from it's charge. As it was turning away I emptied a clip into it before it went down, I thought because I was already damaged I wouldn't get the trophy but it turns out it is only if
it damages you. I'm glad to have that trophy out of the way.