A good addition...
It's a bit more like a spinoff of the MMM games, but that doesn't make it a bad game. I would have like to have seen some upgrades to the tank (better damage, heat sinks, etc), but being able to use the special abilities at the start pretty much balanced that out. All in all, really fun (albeit a little frustrating at times) game, and looking forward to more expansions on this game type.
A tip for people becoming frustrated with the dimensional rift: Siege mode! You lock down your tank in siege mode, so you won't wind up getting sucked into the rift. Beware, however, of other vehicles being pulled toward it. Something big colliding with your tank will destroy it.