why do delta force operators wear the "skatedboard" helmets and not the GI (General Issue) helmets?

Answer 1

They are used to avoid bumps and bruises while taking down a room, rather than actually stopping bullets. I guess its a mobility issue.

Answer 2

The only purpose to the "skateboard" helmet is to prevent hitting their heads on building edges or obstacles in an urban enviroment. They are not worried about a round hitting them in the head. That's why they wear boonies and PCs in natural enviroment(wooded and desert) while in combat. I think the only time a Delta Force guy will wear a ballistic helmet is on a jump.

Answer 3

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