Having looked at the relative weights, I agree with using omni technology with the hetzer would be a good idea, albeit one that only uses big guns, as to replace a single massive weapon system with a bunch of smaller ones isn't true to the original spirit of the design.
The primary reason is that because the
MRM-40 weighs 2 tons less than the
AC/20, but both have very similar ranges, so you can pair two Omni-Hetzers (
Omnizers?) - one to punch holes and one to sandblast. The MRM
hetzer, with 7 tons of ammunition, costs only 43,750 C-bills more than the AC/20 version (adjusted for omni-tech cost modifier), which means that it's certainly within the realm of possibility. Having done some calculations based on the Sarna enry for it, the
Omnizer costs 830,000 C-bills, which is a significant cost increase, but not unaffordable. The MRM
omnizer costs 873,750, so the pair runs you to roughly 1,704,000 c-bills. For 4
Omnizers, you can get 5
Hetzers, so
theoretically the
hetzers will be more effective as they have superior numbers, but the
Omnizers put out more raw damage, and can work together to do more damage overall due to the complementary nature of their weapons.]
You could even keep the 5 tons of armour, and just chuck on a modular armour kit and a TAG system to allow it to spot for that Arrow IV
Omnizer that you have 5 maps away. I think I'm getting carried away now, so I'll stop here.
Whilst some of these musings might belong on a seperate thread for
Hetzer designs, I put them here to demonstrate that an
Omnizer is a viable idea, if maybe one that would be resisted due to Quickscell's reputation - some might not trust them to actually have the omni-pods be interchangable. Another benefit of omni pods is that if your gun gets damages, it's quicker to change and doesn't require a full vehicle workshop, and you can change your
Omnizer's job depending on the enemy you expect to face.