Mod maps in Help and Pending, the way other mods mod them. Take the initiative and show us you can mod.
Create your own maps and get them ranked. Not only does this show that you have dedication to your work, you will also learn valuable tricks and tips which you can pass on when modding.
Chat on IRC (in-game chat). We'll get to know you better, which in turn makes it more likely for us to promote you. A cheerful, bright personality with a good sense of humour helps.
Don't ask, complain or rave on about how good you are, how many posts you've made, or how you've worked so hard and are still not a BAT. If we haven't approached you to become a BAT, you're probably not doing something right, be it modding or behaviourwise (ie. learn to internet). Put yourself in our shoes; would you want to promote someone who keeps whining?
I just want BATs can mod more for mapper.