I've made a mod of the Lamprey cannon called the Starfury. The Starfury is a CAPITAL SHIP WEAPON. I'm not a real good with tbl's so its in a player weapon format. Here is the tbl entry:
$Name: Starfury
+Title: XSTR("[", 3302)
+Description:
XSTR(
"
Tactical Weapon
Medium Energy Usage
Level 3 Shield Damage", 3303)
$end_multi_text
+Tech Title: XSTR("TVIW Starfury", 3304)
+Tech Anim: Tech_GTW-83_Lamprey
+Tech Description:
XSTR(
"", 3305)
$end_multi_text
$Model File: none
@Laser Bitmap: newglo6
@Laser Glow: newglo6
@Laser Color: 120, 120, 30
@Laser Color2: 120, 120, 30
@Laser Length: 20.0
@Laser Head Radius: 15.0
@Laser Tail Radius: 15.0
$Mass: 150.0
$Velocity: 900.0 ;; speed of the weapon (initially) -- may or may not change
$Fire Wait: 0.90 ;; in seconds
$Damage: 750
$Armor Factor: 0.1
$Shield Factor: 1.0
$Subsystem Factor: 0.0
$Lifetime: 2.0
$Energy Consumed: 1.2 ;; Energy used when fired
$Cargo Size: 0.0 ;; Amount of space taken up in weapon cargo
$Homing: NO
$LaunchSnd: 110 ;; The sound it makes when fired
$ImpactSnd: 85 ;; The sound it makes when it hits something
$Flags: ( "esuck" "particle spew")
$Icon: iconLich
$Anim: Lich
$Impact Explosion: none
$Leech Weapon: 35
$Leech Afterburner: 20
Its a real nice weapon. It also has a cool Kinetic effect. When it hits a fighter, the fighter gets thrown away from the attacking ship. At the same time the Leech effect also effects the fighter. Try it!
Place it after the Lamprey entry. Back up your files before you add this, I dont know if it will have an unwanted effect on your FS mods etc.