From The TimeSplitters Wiki

This gun is seen in TS2 and TS3. In story mode in both games it was used to overload powernodes ,but TS3 it was also used to "light up" the bridge in "Something to Crow About" and overloading some of Promethus' shields. In multiplayer, it shocks players to death and has a secondary fire that shoots out blasts. It works best against robots and worst against shock proof characters (like Crow).