I always fancy have an army of crustaceans. It'll totally throw regular soldiers of their patterns. They'll just dig underground and walk sideways. All those training of defeating frontways running soldiers? Too bad, cause' my Wu Tang Clan will beat the shit out of you with their sidewalks.
You young kids are stupid. Using bed sheets, please no. I remember 120 years ago that coal was the answer to everything. Modern convenience and electricity has poisoned your minds.