Khmmmmm. Go to the previous page and c my comment. I think it states quite clearly how to make units move fwd. As for the damage you can use two things: Permanent Immolation or Tornado Dmg Aura. Make the projectile dummy to have a modified version of these abilities (remove all effects) and you're done with the dmg.
skaterjcpwait nvm, i cant fins any trigger that helps
u couldn't? wow, the entire map was based around using units as bullets that travel forward and whatnot... dunno how u couldn't find triggers that help