I say No, you can't dodge in TDA. Calgor Grim have already explained why.
Being unable to dodge is a serious disadvantage, but it's TDA after all. But we did invent over solution, we just allowed terminators to use two fields at once. First you test your normal field, like convertion field, and if it fails, then you cant test the armors inbuilt "field". Cause the description there says its not a field, but just REALLY STRONG armour plating. Cheesy, but not really overpowering.
They don't stack. They're both fields (the TDA one counts as a field, though technically isn't one). Fields don't overlap. It's right there in the rules.
Edited by BrotharTearer