This may be useful for modders who alter the game's default weapon effects.

In Rebellion many of the particles were replaced but different filenames were used, which means there are many leftovers which aren't used by the game anymore (which can be quite confusing, as not all files were replaced and a different naming convention has been used with CapShip/Frigate/Titan/Starbase instead of Heavy/Medium/Light). There are some anomolies that are still referenced even though all similar references point to a replacement, and some that are used for something other than their description suggests. Here's the list; if there's nothing in brackets, the file isn't referenced at all.

Weapon_PhaseCapitalFlashBeamHeavy_Hit.particle (only used on Vasari Flagship, wrongly)
Weapon_PhaseCapitalFlashBeamHeavy_Muzzle.particle (only used on Vasari Flagship, wrongly)
Weapon_PhaseCapitalFlashBeamLight_Hit.particle (used for Vasari charged missiles buff)
Weapon_PhaseCapitalFlashBeamLight_Muzzle.particle (used for Vasari charged missiles buff)
Weapon_PhaseCapitalFlashBeamMedium_Hit.particle (used for Vasari charged missiles buff)
Weapon_PhaseCapitalFlashBeamMedium_Muzzle.particle (used for Vasari charged missiles buff)

Weapon_PhaseCapitalMissileHeavy_Hit.particle
Weapon_PhaseCapitalMissileHeavy_Muzzle.particle
Weapon_PhaseCapitalMissileHeavy_Travel.particle
Weapon_PhaseCapitalMissileLight_Hit.particle
Weapon_PhaseCapitalMissileLight_Muzzle.particle
Weapon_PhaseCapitalMissileLight_Travel.particle
Weapon_PhaseCapitalMissileMedium_Hit.particle
Weapon_PhaseCapitalMissileMedium_Muzzle.particle
Weapon_PhaseCapitalMissileMedium_Travel.particle
Weapon_PhaseCapitalMissileUltra_Hit.particle
Weapon_PhaseCapitalMissileUltra_Muzzle.particle
Weapon_PhaseCapitalMissileUltra_Travel.particle

Weapon_PhaseCapitalWaveHeavy_Hit.particle
Weapon_PhaseCapitalWaveHeavy_Travel.particle
Weapon_PhaseCapitalWaveLight_Hit.particle
Weapon_PhaseCapitalWaveLight_Travel.particle
Weapon_PhaseCapitalWaveMedium_Hit.particle
Weapon_PhaseCapitalWaveMedium_Travel.particle

Weapon_PhaseSupportMissileLight_Hit.particle
Weapon_PhaseSupportMissileLight_Muzzle.particle
Weapon_PhaseSupportMissileLight_Travel.particle
Weapon_PhaseSupportMissileMedium_Hit.particle
Weapon_PhaseSupportMissileMedium_Muzzle.particle
Weapon_PhaseSupportMissileMedium_Travel.particle

Weapon_PhaseWaveCannon_Titan_Hit.particle
Weapon_PhaseWaveCannon_Titan_Muzzle.particle
Weapon_PhaseWaveCannon_Titan_Travel.particle

Weapon_PsiCapitalBeamHeavy_Hit.particle
Weapon_PsiCapitalBeamHeavy_Muzzle.particle
Weapon_PsiCapitalBeamMedium_Hit.particle (used in nanite repair beam buff and support nanite swarm)
Weapon_PsiCapitalBeamMedium_Muzzle.particle (used in nanite repair beam buff and support nanite swarm)

Weapon_PsiCapitalLaserHeavy_Hit.particle (used in Advent Loyalist Titan)
Weapon_PsiCapitalLaserHeavy_Muzzle.particle
Weapon_PsiCapitalLaserHeavy_Travel.particle (used in Advent Loyalist Titan)
Weapon_PsiCapitalLaserLight_Hit.particle
Weapon_PsiCapitalLaserLight_Muzzle.particle
Weapon_PsiCapitalLaserLight_Travel.particle
Weapon_PsiCapitalLaserMedium_Hit.particle
Weapon_PsiCapitalLaserMedium_Muzzle.particle
Weapon_PsiCapitalLaserMedium_Travel.particle

Weapon_PsiCapitalPlanetBombingDart_Hit.particle
Weapon_PsiCapitalPlanetBombingDart_Muzzle.particle

Weapon_PsiCapitalPlasmaHeavy_Hit.particle
Weapon_PsiCapitalPlasmaHeavy_Muzzle.particle
Weapon_PsiCapitalPlasmaHeavy_Travel.particle
Weapon_PsiCapitalPlasmaLight_Hit.particle
Weapon_PsiCapitalPlasmaLight_Muzzle.particle
Weapon_PsiCapitalPlasmaLight_Travel.particle
Weapon_PsiCapitalPlasmaMedium_Hit.particle
Weapon_PsiCapitalPlasmaMedium_Muzzle.particle
Weapon_PsiCapitalPlasmaMedium_Travel.particle

Weapon_PsiSupportBeamLight_Hit.particle
Weapon_PsiSupportBeamLight_Muzzle.particle
Weapon_PsiSupportLaserLight_Hit.particle
Weapon_PsiSupportLaserLight_Muzzle.particle
Weapon_PsiSupportLaserLight_Travel.particle
Weapon_PsiSupportPlasmaLight_Hit.particle
Weapon_PsiSupportPlasmaLight_Muzzle.particle
Weapon_PsiSupportPlasmaLight_Travel.particle

Weapon_TechCapitalAutoCannonHeavy_Hit.particle
Weapon_TechCapitalAutoCannonHeavy_Muzzle.particle
Weapon_TechCapitalAutoCannonHeavy_Travel.particle
Weapon_TechCapitalAutoCannonLight_Hit.particle
Weapon_TechCapitalAutoCannonLight_Muzzle.particle
Weapon_TechCapitalAutoCannonLight_Travel.particle
Weapon_TechCapitalAutoCannonMedium_Hit.particle
Weapon_TechCapitalAutoCannonMedium_Muzzle.particle
Weapon_TechCapitalAutoCannonMedium_Travel.particle

Weapon_TechCapitalBeamHeavy_Hit.particle
Weapon_TechCapitalBeamHeavy_Muzzle.particle
Weapon_TechCapitalLaserHeavy_Hit.particle
Weapon_TechCapitalLaserHeavy_Muzzle.particle
Weapon_TechCapitalLaserHeavy_Travel.particle
Weapon_TechCapitalLaserLight_Hit.particle
Weapon_TechCapitalLaserLight_Muzzle.particle
Weapon_TechCapitalLaserLight_Travel.particle
Weapon_TechCapitalLaserMedium_Hit.particle (used by Tech Carrier/Colony/Support Capitals)
Weapon_TechCapitalLaserMedium_Muzzle.particle (used by Tech Carrier/Colony/Support Capitals)
Weapon_TechCapitalLaserMedium_Travel.particle (used by Tech Carrier Capital)

Weapon_TechCapitalMissileHeavy_Hit.particle
Weapon_TechCapitalMissileHeavy_Muzzle.particle
Weapon_TechCapitalMissileHeavy_Travel.particle
Weapon_TechCapitalMissileLight_Hit.particle
Weapon_TechCapitalMissileLight_Muzzle.particle
Weapon_TechCapitalMissileLight_Travel.particle

Weapon_TechSupportAutoCannonLight_Hit.particle
Weapon_TechSupportAutoCannonLight_Muzzle.particle
Weapon_TechSupportAutoCannonLight_Travel.particle
Weapon_TechSupportLaserLight_Muzzle.particle
Weapon_TechSupportLaserLight_Travel.particle
Weapon_TechSupportMissileLight_Hit.particle
Weapon_TechSupportMissileLight_Muzzle.particle
Weapon_TechSupportMissileLight_Travel.particle