Thanks for comments guys

So here is my basic list:
HQ
Warboss: power claw, eavy armor, cybork body
Warboss: bike, power claw, cybork body
Elites
3x Meganobz : 3 scorchas, trukk
5x Tankbustas: 2 hammers, trukk
Troops
8x Nobz: 3 power claws,painboy, banner,2 big choppas, 2 scorchas, cybork bodies,
Batlewagon: deaf rolla
5x Nobz: bikers, 2 power claws, painboy, banner, cybork bodies
30x Slugga boyz: nob,power claw, bosspole
30x Shoota boyz: nob,power claw, bosspole
Heavy support
Deaf dread: adittional cc weapon. scorcha, riggers and armor plates
3x Killer kanz: 2 rokit launchas, scorcha
3x Zzap guns: ammo runts
So ,this is my 2000 standar points army, in a 1750 points tourny I drop the three heavy supports altogether and add a meganob.
Well, this is how this army works and WINS!!!

There are 4 fast moving dangers that every one of them deserves some shooting. The warboss with the nobz are unmatched in close combat and in my long experience they will be a primary target because there are only a few armies that can compite with them in hand to hand
(
1Space wolfs with all those characters and special equipment and of course their land raider,
2 tyranids with this HQ choise that just kicks as with instant death attacks and I 6 or something the swarmlord?,
3 Black templars believe me 8 terminators in a land raider full of guns is nasty,
4 the deciver but not always)
Thats why you have to get them close to the enemy quicly , they are also hard to kill by sharing wounds to diferent equipment models and they are scoring units, huray!!! Dont forget the battlewagon though, if it rams an enemy vehicle it will cause 1d6 st10 hits!!!!!! so start ramming

The Nob bikers on the other hnad with the other warboss are real monsters , some of the hardest models to get rid of, t5 as4 inv5 w2 feel no pain and cover 4+ ALWAYS, 3+ on the turbo, if there is a insta kill wond (st8-9) pass it to the warboss, and let the cover do the job. On hand to hand, ouch they are good there too AND scoring unit.

Meganobz are fast on their trukk and can take down most of the tanks preaty easilly, especially Leman russes

, and some hevy or light infantry without a power fist.A unit that most armies need to deal with fast!
Tankbusta may not always be usefull, eg against tyranids, but their skills (and st10 6 Attacks) can make them the scourge of artilery, heavy stationary tanks and bad things as monoliths. You can change them with burnas or 7 lootas if you are up against a more horde style and litle shooting army.
As you can seethe enemy has already 4 good targets, 2 of them can spell GAME-OVER in some missions and situations. So he has to think twice before shooting one down ( yes ,no matter how cool orks are they can get shot to death by a lot of armies if not placed correctly). Now, if he manages to escape-kill-engade-hold these threats then he will be really pisted of when he sees 60 boyz advancing to give the final blow, and not only boyz, Kanz and a dread are there to kill the nasties that survived the first wave, hahaha.
The role of the boyz is to hold objectives and finish the work the bigger and nastier orks started .
3 Zzap guns can be really fun to play with, mine have destroyed 7 land raiders, 3 monoliths, and a lot of othe r less fortunate vechicles.
Just for variet I change sometimes and if I know the enemy I change the nob bikers for
1 8 combi weapon nobz with big choppas in a battlewagon
and a warboss with combi weapon and power claw OR a big mek with burna and kustom force field
2 the tank bustas for burnas or lootas or sometimes 10 commandos
3 I exchange the Zzap guns for three more Killa Kanz
4 the meganbz for some combi weapon nobz in the trukk
5 give the meganobz a battle wagon by remouving the trukk and the Zzap guns
O just take my Big mek list that i will post another time......
