Starcraft 2: Destroy Infested Buildings

In SC2 Outbreak Mission, you are suppose to destroy all infested buildings on Planet Meinhoff during the day. It's suicidal to do it at night because of the overwhelming numbers of infested refugees & marines that roam about during night time.

To inflict maximum damage with enough time to retreat back to base when night falls, use the Hellion high-speed raider with infernal flame thrower. Hellion fire it's flame in a straight line so multiple units can be hit if you aim for the last enemy rushing at you. This video shows Hellion units destroying an infested Terran base. Retreat back to your base with about 10-15 secs left to night falls before the infested refugees attack.