Get a ballistic helmet, if you cant afford or find one, get a motorcycle helmet or even a construction hardhat. The airsoft larp gear will just get you hurt.
Also, and this goes for ballistic plates too, if it ain't NIJ certified it is worthless and will get you killed or injured.

https://www.hardheadveterans.com/blogs/reviews/bulletproof-helmets-what-you-need-to-know