Hi Xenomorph,
here is the solution for the nukebomber - atomic blast - this was missing in CIV4EffectInfos.xml.
Now the DCM and your Nukebomber is working perfect.

))
<EffectInfo>
<Type>EFFECT_JETFIGHTER_NUKE</Type>
<Description>Jet Fighter Nuke Animations</Description>
<fScale>1.0</fScale>
<fUpdateRate>1.0</fUpdateRate>
<Path>Art/Units/nukebomber/JetFighterBomb.kfm</Path>
<bIsProjectile>1</bIsProjectile>
<fSpeed>400.0</fSpeed>
<fArcValue>0.0</fArcValue>
</EffectInfo>
<EffectInfo>
<Type>EFFECT_JETFIGHTER_NUKE_EXPLODE</Type>
<Description>Nuke Bomb Explosion</Description>
<fScale>0.6</fScale>
<fUpdateRate>.6</fUpdateRate>
<Path>Art/Units/nukebomber/fx_explosion_nuke.nif</Path>
<bIsProjectile>0</bIsProjectile>
</EffectInfo>