Sorry if this is "off topic"
This is my Version of the
Uni-Pulse Cannon that only takes out engines. I tried to add this to the components.txt file with mixed results.
It worked,but had undesirable effects on other things.I ran a test by modifying the original that worked. I had a fighter with 2 cannons, one
only engines the other
only weapons, that disabled any ship that ran into it that had no point defence. I cleaned up on the resources front at the loss of components to research.
Also whilst it appeared next to the original Uni-pulse when configuring fighter components it would vanish if the
"latest" setting was invoked. Ideally I want it to be visible along side the original as I only intended to have Marks I to V for this mount. As level VI of the Original is researched the Mk V disappears. How do I assign this so that it is available to pick no matter how far up the research tree you are.
If I can get this to work I'll do a weapons only Variant.
What do I need to change to keep this visible for picking when configuring fighters? 
I don't want to effect any research tree.
Name := Uni-Pulse Cannon I (EngTL)
Description := The Uni-Pulse Cannon is a fighter-mounted weapon which is often found paired on most basic fighters.
Pic Num := 610
Tonnage Space Taken := 4
Tonnage Structure := 2
Cost Minerals := 2
Cost Organics := 0
Cost Radioactives := 0
Vehicle Type := Ftr\Trp
Supply Amount Used := 1
Restrictions := None
General Group := Weapons
Family := 12741
change by one = solution
Roman Numeral := 1
Custom Group := 0
Number of Tech Req := 2
Tech Area Req 1 := Particle Weapons
Tech Level Req 1 := 1
Tech Area Req 2 := Earth Alliance Tiny Weapons
Tech Level Req 2 := 1
Tech Area Req 3 := 0
Tech Level Req 3 :=
Number of Abilities := 1
Ability 1 Type := Cloak Level
( bogus ability to allow for description: below)
Ability 1 Descr := Targeting CPU locked on engines only.
Ability 1 Val 1 := 0
Ability 1 Val 2 := 0
Weapon Type := Direct Fire
Weapon Target := Ships\Planets\Ftr\Sat\Drone
Weapon Damage At Rng := 10 9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Weapon Damage Type := Only Engines
Weapon Reload Rate := 1
Weapon Display Type := Beam
Weapon Display := 149
Weapon Speed := 0
Weapon Modifier := 3
Weapon Sound := SFuryGun.wav
Weapon Family := 1741
change by 1 = solution
[ May 29, 2004, 12:24: Message edited by: Nomor ]