Well, we're right in the middle of the game, and it's been really fun. I stuffed a ravine full of electric fences and mines, and my brother made it his first line of defense. Fortunately, I was able to take it by storm after suffering heavy casualties. My snipers took down several QuikBikes, and a turret was de-piloted twice, but not before it converted my Hero into several ex-Hero gobs of plastic. A mech, a truck, an Assault Rowboat, and several Quikbikes have exploded so far.
At the moment, I've sent a task force to occupy the bridge, and they're going to storm the base as soon as backup arrives. I only have about half a vehicle left, which is essentially acting as a moving shield for my heavy troops. I have a sniper in a pillbox who's keeping the large turret empty, but it would only take one shot to sweep my assault team off the bridge.
Needless to say, things are getting tense.