[2021] lucifer must rebalanced

Originally posted by syphonax: Lucifers should be able to put "Wooden Walls" on Fire to help early game...for that Scorched Earth policy effect, if you mess up. You should be able to upgrade Lucifers later for "Stone Walls" so that they have Wings aka Flying Lucifers with jet-pack Rocket boosters

Lucifers are late game units so it's not possible that idea.

Regards