particle beam cannon 

Used on ships from gunships to dreadnoughts, particle beam cannons are some of the most effective weapons developed. Smaller ships like gunships and corvettes have few anti-capital cannons, and more anti-fighter cannons. Larger ships employ multiple anti-capital cannons, which make for spectacular ship battles.

The particle beam cannon was only seen in the Lucifer in FreeSpace.

particle beam cannon by Shawn Farrell May 5, 2004

tripod mounted twin beam dual reactor multipurpose particle ray with a built in ion cannon 3d particle accelleration device with a tissue mutation bean cryo genetical freezing sereum intergrated missle defence system nuclear powered air refraction device 

Pretty self explanatory isnt it?

the tripod mounted twin beam dual reactor multipurpose particle ray with a built in ion cannon 3d particle accelleration device with a tissue mutation bean cryo genetical freezing sereum intergrated missle defence system nuclear powered air refraction device with a titanium plated nano enhanced bio genetic subterranean drilling unit with a cold fusion powered fission controlled pulse repition wave generator with a neuro planted japan made self installed mind manipularisation array with a biodegradable hand made master control terminal with a built in light emitting diode is good

tripod mounted twin beam dual reactor multipurpose particle ray with a built in ion cannon 3d particle accelleration device with a tissue mutation bean cryo genetical freezing sereum intergrated missle defence system nuclear powered air refraction device by Hows Your [FACE] October 14, 2006