1) Chimeras with Heavy Stubbers cost 65 points, not 55.
2) A Command Squad can't have 4 special weapons AND a medic. Medic eats up a Veteran that could be holding a special weapon.
3) Special Weapon squads can't have three special weapons AND a Demo Charge. 3 weapons total.
4) Eradicators are useless. Don't ever bring one for any reason.
5) Battle Tanks are better suited in an anti-infantry role, leave the lascannons for Demolishers or Vanquishers.
6) Although imitation is the highest form of flattery, you could do much better than just to copy my most recent army list and then modify a few units. You're more creative than that; make your army your own!