1st post for a while but anyway, this list is for fun not necessarily competitive play, so don't be too harsh...please

1000pts Krieg 15th Regiment

HQ
Command squad: senior officer, ensign has regimental standard: 106pts

Troops
Platoon
Command squad: Junior officer, autocannon, watchmaster has company banner
Squad: grenade launcher, veteran watchmaster
Squad: grenade launcher, veteran watchmaster
292 pts

Engineer squad: 6 engineers, gas grenades, mole launcher, veteran watchmaster has melta bombs: 103pts

Engineer squad: 6 engineers, gas grenades, mole launcher, veteran watchmaster has melta bombs: 103pts

Hades breaching drill: 50pts

Elites
Heavy Quad Launcher Battery: 3 guns: 210pts

Heavy support
Leman Russ Annihilator: hull heavy bolter: 135pts

999pts
57 models

Ty

I'd be tempted to drop the crews to 3 on the Quads and use the points elsewhere, like maybe take a large Engineer squad or take 2 smaller Engineer squads. I've never yet lost all my crew to shooting on any Quad or Heavy Mortar, they tend to get ripped apart when the enemy gets into CC though - and at that point 5 is rarely going to be any benefit over 3 as they die very quickly anyway. And what could be more fun that 2 squads of Engineers coming on via the Hades tunnel rather than just 1

How does the hades fare then???
My vrax boys have been casting envious glances across the ramparts.

Looking good but you need some more troops! Your a DKoK siege army!!!

You also need some AT fire power

I would suggest this

http://www.forgeworld.co.uk/dkkcent.htm

And a set of these

http://www.forgeworld.co.uk/dkklc.htm

ruffian, only tried my Hades once - it came up behind Slate's containment fence, didn't hit anything (damn!), then got wrecked but at least provided cover for the emerging engineers. The mole mortar didn't do much, although some of that will be down to me forgetting to use it

I've made changes, ty for comments