ZentzlbSilver TafferI usually go with ‘Reinforced’ for shields, special effects I vary to find what works best - you can easily change the special without further base engineering.
Nah for a chieftain you want a thermal res biweave with 2-3 res augmented boosters.
The question was about Type-9 Defender?(probably type-10) and Silver Traffer is talking about his general preferences.
Else I agree with you Chieftain is hull or hybrid tank. So, either no shield or fast recovering shield which is bi-weave thermal/fast charge with resistance augmented boosters