> For the complete documentation index, see [llms.txt](https://castleoverlord.gitbook.io/whitepaper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://castleoverlord.gitbook.io/whitepaper/nft-model/nft-unit-trooper.md).

# NFT Unit: Trooper

This unit can be summoned by players in assault or raid battles to march forward and attack the enemy fearlessly. Players are required to own at least one unit of NFT trooper in order to unlock the full game features. Owning multiple troopers allows players to attack enemies more often and with a larger force, making it essential in order to defeat enemies with a strong defense. 

Troopers come in many type variations, and each type has its strengths and weaknesses. For example, some troopers may fight using a sword, while other troopers fight using a gun. The sword users have a strong defense but can only fight in close range, while the gun users can attack from afar but are more fragile. When certain combinations of troopers are deployed in battle, they may synergize with each other and gain increased strength.

A NFT trooper consists of 5-6 parts:

* Head
* Torso
* Arm
* Leg
* Weapon
* Peripheral (additional)

Each part has its own rarity, shape, and color variation. When a unit is minted, these variations will be assigned randomly, but there are also some booster packs that give single-colored units.

![A Cyber Samurai trooper with legendary body parts and a legendary weapon.](/files/vQxSFZbBOBK60TCYR3Mn)

![Rear view of a Military trooper with a peripheral (dog in a backpack).](/files/dwvUmghV38WUwpYHHOIS)


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