Firstly,
If you are non-military personell, you cannot own a gun until you do an item request.
If you are military personell, you cannot use any other guns other than your default load-out until you request it on item request.
If you are creating or plan to acquire any sort of special weapon permanent weapon, item, or upgrade, you must apply for it on the item request thread in the characters section.
So, in summary; if you want anything other than a standard marine pulse rifle ICly, you have to go here and apply for it first. In this application you must answer this format;
Character receiving item:
What exactly is the item?:
How did you acquire/create this item?:
Can you be trusted with this item? Explain:
What's the specialty of this item? Better accuracy, firepower, extended clip, long range communications etc?:
This goes for psychics as well, to level up or acquire psychic abilities in the first place you must do an application for it in item request.
Enough random flamethrowers, modified super shotguns, and grenade launchers with no prior item request thread, violate this rule and you will be banned.