[Warheads]
+=IRONMAKER
[Animations]
+=BLACKRING
[WeaponTypes]
+=IronMake
[IRONMAKER]
CellSpread=2
PercentAtMax=1
Verses=100%,100%,100%,100%,100%,100%,100%,100%,100%,100%,0% ;3%,3%,3%,3%,3%,3%,3%,3%,3%,3%,3% ; this was before...
AttachEffect.Duration=3000 ; You know, this is the effect lasts, new duration

AttachEffect.FirepowerMultiplier=1.2; another bonus
AttachEffect.SpeedMultiplier=1.2 ; another bonus
AttachEffect.ArmorMultiplier=99.9 ; The only thing you have to arrange
PreventScatter=yes
AllowZeroDamage=yes
AttachEffect.ROFMultiplier=0.8 ; another bonus
;IronCurtain.Duration=1200 ; CANCELLED !!!This is the duration I use in my mod...
;IronCurtain.Cap=1200 ; As well as above ,cancelled...
AttachEffect.Cumulative=no
AffectsEnemies=no ; Required
[IronMake]
Damage=3
Range=5
Projectile=InvisibleMedium
Warhead=IRONMAKER
Speed=10
Report=IronCurtainDeflect
[Powerups]
Armor=10,ARMOR,yes,1.7
Firepower=10,FIREPOWR,yes,2.0
HealBase=10,HEALALL,yes
Money=10,MONEY,yes,5000
Reveal=10,SHROUDX,yes
Speed=10,SPEED,yes,1.5
Veteran=10,VETERAN,yes,2
Unit=10,<none>,no
Tiberium=0,<none>,no
Napalm=0,<none>,no,600
Explosion=0,<none>,no,500
ICBM=10,RAPID,yes
Darkness=0,REVEAL,no
Gas=0,DEMTEXP,no,500
Pod=0,NEWCRATE1,no
IonStorm=0,NEWCRATE2,yes
Cloak=10,CLOAK,no
Invulnerability=10,BLACKRING,no,99999999 ;those 9s are not important..

let's go art.ini
[BLACKRING]
Translucent=no
Rate=300
TranslucencyDetailLevel=1
Flat=true
Layer=ground
Translucency=50
Warhead=IRONMAKER
Damage=3
Weapon=IronMake
Duration is up to you ! Perfect with everthing that you grab the lucky Invulnerability crate .Crate radius effect can be modified under [CrateRules] section.So the cell radius effect is up to modders.