Bloodbath Achievement

[sm00th]

I managed to get through the game without doing 1000 alien kills on the same level/map ... well for that achievement, you have to do 1000 kills on the same level/map.

I recommend it to do somewhere on the second planet where an enemy it tagged with "Lots", should be all over 20 minute time limit. Just build enough units to hold them back and push when timer is on 5 minutes.