I just got my torque bow achievement.  This was actually a fun achievement. I actually enjoyed the torque bow because I have gotten pretty good with it lately.  I actually thought that I was at about 60 or 70 kills with it so I was quite surprised when I finished a match and saw the achievement!

I am not certain which special weapon achievement I will be trying for next. I am close to my headshot achievement so perhaps I will try for the Sniper achievement seeing as I can kill two birds with one stone

What were your favorite achievements for Gears and/or which one are you currently trying for?