I need a name for my xbox account... help fast please!!!?

i want a good gamertag for my Xbox live account. i am trying to get popular with videos online and i want a name that would sound good to a lot of people. i just want a name that fits and sounds good. info: i play call of duty and halo, my name is Brandan, my nickname is Bstephs, i like guns, i am going into high school this year.