-Insert image of your character/image alluding to your character here-
Stormtrooper classification: There are TONS to choose from. Just don't go overboard and pick, say, a seatrooper or something(Yes, they exist). Some excellent examples for this would be Scout Troopers, Shadow Troopers, and, ofcourse, the average Stormtrooper.
Designation: Most, if not all stormtroopers, are trained to forget the names given to them at birth. As such, this is your official, imperial designation, the like of which will nearly always be of a Numerical value.
Military Ranking: In the corps, this is usually denoted by a colored pauldron. Nothing too crazy; don't go making yourself some Grand Moff all of a sudden, or a full on commander without OOC consent.
Nickname: Of course, in the midst of combat, yelling out someone's full designation isn't very tactical. As such, in most divisions, many come up with a nickname for themselves, or each other. This nickname is very commonly just a shortened version of their designation, a play on their armor or weapon of choice, or simply something that alludes to their character.
Race/species: Though Xenophobic to some extent, the empire did, nonetheless, accept many intergalactic races into their ranks.
Planetary Origin: Where they originally hail from, before they joined up with the Imperial armed forces. Most soldiers herald from planets ruled by the Empire, but others have been known to travel into the Empire to join under their banner.
Gender: Self-explanatory.
Armor appearance: Since no doubt many will enjoy customizing their character, here is where you'll denote what kind of armor they don according to their classification, as well as what custom additions it possesses, whether it be extra bandoleers or haphazardly painted helmet flames.
Personality: Just a curt description pertaining to what they're like on and off the field of battle.
Appearance: What they look like beneath the (hopefully) menacing armor.
History: I'd honestly prefer this part to be brief. Is there really much to say? Most Stormtroopers share the same background, and most of the details of their lives are made known thanks to their race, or home planet. Treat this more so as an opportunity to discuss their strengths and weaknesses, maybe what they excelled at in the academy, and what they sucked at. If you really want to write something else, feel free, no one's stopping you, and it'll only further assist the storyline.
Notes: This part is basically optional. If there's anything you feel like mentioning about your soldier, whether it be some personal memento he carries or a pyrotechnic obsession with flame, do so here.