Just saw the news that BossKey Production has gone out of business, 2-3 years ago,I worked briefly on one of their projects titled "Dogwalkers" which unfortunately didn't gone very far. I think these were just really early explorations, just throwing in ideas of a giant dog-like mech that requires four pilots(players), really rough and quick explorations.
It was originally going to be 3 classes for the "Dogs", the Bulldog, German Shepherd and the Mastiff.