I'd consider the following for your veterans list:
Drop the Demolitions off of the Veterans, and also drop frag grenades. That there nets you a solid 40 points to play with. You've still got the 3 grenade launchers to chuck krak grenades at range and they have frags on them by default.
Drop the dozer blade off the chimera. That brings points saved to 45.
Use saved points to bring in an Armored Sentinel. Even stock, you can enjoy a second miultilaser.
The last few points you can spend a coupe of different ways. Give your sergeant a meltabomb, or my preferred option, upgrade the gun on the Armored Sentinel to an autocannon.
Make the Sentinel a specialist, and master craft the autocannon for decent odds of getting at least one, and hopefully both shots to hit most turns.
Just my advice on that. Hope it helps. Take it easy.
-Red__Thirst-