I updated The Bombardier playbook on RPGNow.com with new art of a manic halfling grenadier (by the fantastic Daoyi Liu), and a whole new playbook layout.
http://www.rpgnow.com/product/126872/Bombardier-A-Dungeon-World-Playbook
http://www.rpgnow.com/product/126872/Bombardier-A-Dungeon-World-Playbook