The WY-102 Railgun is a weapon designed for extreme range and is used by Weyland-Yutani armed forces such as Weyland-Yutani security teams and Combat Andorids. However, Corporate mercenaries (Iron Bears) and even the Colonial Marines used the WY-102 in roles of long range fire support and assassination. It fire's a super heated slug at extreme velocities that can pierce most forms of body armour and even penetrate thick armour plating of vehicles and structures.
The WY-102 Railgun is often employed by Weyland-Yutani security force on forward positions to oversee perimeter defences and act as spotters for incoming enemy forces. They are most actively used by the personnel on the Weyland-Yutani operation held on LV-1201 by Dr. Eisenberg and the Corporate mercaneries, the Iron Bears. The weapon's rotary gas chamber is stimulated with each round of fire.
The slug it fires is capable of ripping through multiple enemies in a single shot and is extremely capable of penetrating the exoskeletal armour of Praetorians. It is also capable of penetrating doors and heavy duty glass windows with ease.
- Aliens versus Predator 2 in-game training message
- It was the strongest Marine weapon in the game, even stronger than the SADAR.
- Like the M42A Scope Rifle, the WY-102 appears to be based on the real life Walther WA 2000 sniper rifle. However, the weapon could have been based on the M42A (which would make it somewhat based on the WA 2000 as that is what the M42A was based on).