Why did they green barbarians scream so weirdly?

because exactly for that reason. While you're wondering or even hesitating because of a green screaming man, he might just lop your head off.

To scare their enemies or just give them a pause.

When you see a green half-naked bald guy screaming at you, it makes you wonder.

They were trying to compensate for the Rock's lack of acting ability?

Never for the sake of peace and quiet deny your convictions-Dag Hammarskjold

GS Hartman: "SHOW ME YOUR WAR FACE!"



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Kerbal Space Program:
Failure is not an option. It's a requirement!