Missle Tail's

To remove the missile trail I believe you would have to create a new effect that doest have one. I'm not really sure how that would work to be honest.

As for changing the missile speed, no particle forge cannot help you there. You will need to edit the "TravelSpeed" line for the missile weapon in each ships .entity file that you want to change. For example:

Weapon
WeaponType "Missile"
damageEnums
AttackType "CAPITALSHIP"
DamageAffectType "AFFECTS_SHIELDS_AND_HULL"
DamageApplyType "BACKLOADED"
DamageType "PHYSICAL"
WeaponClassType "PHASEMISSILE"
DamagePerBank:FRONT 40.599998
DamagePerBank:BACK 0.000000
DamagePerBank:LEFT 0.000000
DamagePerBank:RIGHT 0.000000
Range 5500.000000
PreBuffCooldownTime 7.000000
CanFireAtFighter FALSE
SynchronizedTargeting FALSE
PointStaggerDelay 0.080000
TravelSpeed 1000.000000
Duration 0.000000
WeaponEffects
weaponType "Missile"
burstCount 1
burstDelay 0.000000
muzzleEffectName "Weapon_PhaseCapitalMissileHeavy_Muzzle"
muzzleSoundMinRespawnTime 0.100000
muzzleSounds
soundCount 2
sound "WEAPON_PHASECAPITALMISSILEHEAVY_MUZZLE"
sound "WEAPON_PHASECAPITALMISSILEHEAVY_MUZZLE_ALT1"
hitEffectName "Weapon_PhaseCapitalMissileHeavy_Hit"
hitHullEffectSounds
soundCount 1
sound "WEAPONIMPACT_PHASEMISSILEHEAVY_HITGENERIC"
hitShieldsEffectSounds
soundCount 1
sound "WEAPONIMPACT_PHASEMISSILEHEAVY_HITGENERIC"
missileTravelEffectName "Weapon_PhaseCapitalMissileHeavy_Travel"
missileStartTurningDistance 100.000000
missileSlowTurnRate 0.708997
missileMaxSlowTurnTime 3.000000

That is the missile weapon entry in "CAPITALSHIP_PHASEBATTLESHIP.entity" the Vasari battleship. You would simply need to change the 1000 for TravelSpeed to 2000 or whatever other number suits your fancy.

Thanks man i will set out to increase the missle travel speeds, but can someone confirm that a new effect would be needed to remove the tail's from missles? im using bailknights graphic mod and the phase missle's would be awesome with no tail, like the torpedos from star trek

Yes, you have to edit the particle effect and simply remove or disable the emitter responsible for the trail.