From the livestreams and LPs, it looks like Combined Arms has been pretty much completely replaced with the Corps/Army system. So instead of combining units of several different types together - like an infantry with an anti-air unit - we can just stick two or three units of the same type together for a +10 and then +7 boost. Is that right? Do we know if it's been confirmed anywhere, or is it just inferred? (Not that I think the inference is unwarranted; I just wanted to see if there's confirmation.)