Transformers questions by newbies, and not-so-newbies

[Paulbot]

So do the FOC Bruticus and new Ruination have interchangeable limbs? I noticed a pic of Ruination with the helicopter/tank arms as legs and Bruticus legs as arms on Ruination.

Yes. This came out back in February.

Yep they are hands, because:

The four remaining characters will have the traditional robot and vehicle forms, with the added ability to transform into any of Bruticus' limbs, all without relying on extraneous toy bits (foot plates, fists).

From the interview discussed here.