Hi, this is a forum about creating costumes in tribute to the Halo games. They are not intended to be used for an inherently more dangerous hobby such as airsoft or paintball. The equipment used in those sports is certified as safe for that event.
If anyone were to use an idea or technique suggested on the 405th and get injured, it is possible that the staff here could be found liable. Therefore such discussions are normally closed and deleted when found by an administrator.
In short, if you enjoy airsoft or paintball, that is great! But please take discussion of your hobby to an appropriate forum. This is a forum to help you create a costume, not protective equipment.