It's also a good point to consider that infantry combat in AR and APB are very much different, the dog in APB as it is in AR would not perform as good as one might think. In fact I believe it would actually suck. Maps are more narrow, not so open, no big building interiors, infantry are more accurate and have better ROF in general (plus better anti infantry roles such as captains, starshinas, nades, flamethrowers, etc).
So really comparing how dogs are in AR doesn't mean they will be same for APB. In the end both games should have quite different dog balance and mechanics.