Ask your local field if they have any positions open. You might get something like junior referee or some other entry position.
No, no paintball guns work on hydrogen.
18
Paintball stores usually wont hire anyone under the age of 18.
No, you should use only paintball specific of air tool lubricant.
No.
no, because the air is what pushes the paintball out off the barrel.
No paintball gun will work without a CO2 tank or other propellant tank. without Co2 there is nothing to push the ball out of the barrel.
One can find discounted paintball accessories from Just Paintball, Paintballing, Discount Paintball, Zephyr Paintball, Outpost Paintball, Paintball UK and Armed Paintball stores.
Spyder style paintball marker work with a stacked bolt design. on the top they have the bolt that pushes the paintball forward and has gas fired through it, and on the bottom a striker that opens the valve. These two move back and forth, powered by the gas inside when the trigger is pulled.
Yes it will
In general scopes are not very useful in Paintball due to the relative inaccuracy of the Paintball itself and the tunnel vision effect of the scope. but if your Paintball gun had weaver or 3/8 rails, you can mount whatever scope (or sight, a better option) you wanted on it
any .68 caliber will work, really though go to a paintball shop, anything from a store that is not paintball specific will be pretty bad paint that has been sitting there for months