Deployables

Deployables are items that can be deployed at will on the battlefield, adding a strategic element to battles. Deployables feature in Unreal 2, XMP, and in some Unreal Tournament 3 gametypes.

Unreal 2
U2's deployables can be picked up again and re-used elsewhere.
 * Auto Turret - automatic defensive turret, 350 health
 * Rocket Turret - automatic defensive turret, 500 health
 * Field Generator - pole-shaped generator used in pairs to create a Force Wall, 300 health
 * Land Mine - mine that can be placed on the ground
 * Trip Mine - mine that can be place on walls

XMP
XMP features U2's single player deployables as well as three deployable pickups. See U2's section for details. All turrets except for the pickups need energy to function.
 * Auto Turret - Tech
 * Rocket Turret - Tech
 * Field Generator - Tech
 * Land Mine - Gunner
 * Trip Mine - Gunner
 * Health Pack - Ranger, health pickup
 * Power Pack - Tech, shield pickup
 * Supply Pack - Gunner, ammo pickup

Unreal Tournament 3
As UT3 isn't out yet, this section is still incomplete.
 * Spider Mines - intelligent, robotic mines like those from the Mine Layer
 * Slow Cube - green, gelatinous looking cube that slows down everything inside it, including weapons fire