FN-2199, also known as "Nines", is a riot trooper who spotted a former comrade, being Finn killing one of his fellow troopers, he then shouted "Traitor!" and began to attack Finn, but was then shot by Han Solo. A novel showed that Nines was part of Finn's squad in the First Order.
Powers and Stats
Tier: 9-C physically. 9-A with blasters. High 8-C with heavy weapons and explosives
Name: FN-2199, "Nines"
Origin: Star Wars
Age: Early to mid 20s (roughly the same age as Finn)
Classification: First Order Riot Trooper
Attack Potency: At least Street level physically (Defeated Finn while said person was wielding a lightsaber). Small Building level with blasters (The standard issue F-11D blaster rifles of the First Order Stormtroopers pack similar firepower to the E-11 and DC-15S on which they are based). Large Building level+ with heavy weapons and explosives
Speed: Peak Human
Lifting Strength: At least Athletic Human, likely Peak Human
Striking Strength: Street Class
Durability: Likely Street level without armor. Wall level with armor against physical strikes (Captain Phasma noted that even a Wookiee would be hard pressed to break First Order Stormtrooper armor) and Small Building level against blasters (Undersuit and armor plating are made of a material which can disperse the energy of one blaster bolt hit which can result in the wearer being knocked out but still alive)
Stamina: Peak Human
Range: Extended melee range with riot control baton. Tens of metres with blaster pistol and grenades. Hundreds of meters with blaster rifle
Standard Equipment: F-11D blaster rifle, SE-44C blaster pistol, Z6 riot control baton
Intelligence: Highly trained soldier and skilled fighter overall. Otherwise average intelligence.
Weaknesses: None notable