I know about Custom Robot, Armored Core, Zone of the Enders and Gundam but I've never heard of this title before ?
Chromehounds was a multiplayer mech game in the vein of armored core 3. It had the same mech building as AC3, except you could take your mechs online to fight other people in 6 v 6 squads. The game made it so you couldn't talk to your team unless you were within radar range, and you had to capture radar towers to expand your radar range. So a lot of times people would be out doing stuff cutt off from the rest of their team. The moments of radio silence were exhilarating, because you never knew if your out of radar range teammate was ok or getting ambushed by 3 other mechs.
The game was really good, except that 6 v 6 matches would often drop people, so real matches were usually 4 v 4. And once they came out with double-doubles the entire game became broken. But for the first 4 or so months the game was really damned good.