Warrior
The Warrior (or Hunter) is one of the primary assault organisms of the hive. It is fast, reasonably tough, and a savage combatant. Even in death the Warrior is dangerous, bursting apart when killed and drenching nearby enemies in acid.
The most visible difference that Warriors have from other Xenomorphs is the ridged head. The head carapace is also harder than that of Drones, able to ram into targets and capable of knocking an armored Yautja Hunter away.
Warriors are shown to be extremely agile; capable of navigating through vents, up walls, and navigating large areas swiftly. They also have an astonishing leaping ability.