So basically, to break it down for ya: you are two teams fighting for the valuable resource Abzolium. To get this Abzolium, you and your team have fight your opponents to capture nodes throughout the level. These nodes, not only provide Abzolium, it gives you access to elements on the battlefield to help you capture more nodes. The team that have reached the maximum amount of Abzolium wins the battle.
"But... Mr. Blog Writer, sir, this sounds like an AWESOME idea!"
And for giving us such a nice feedback, Timmy, I will provide you with two pix, even though I'm risking of running out of materials later ;;>_> (and to show that we are actually working)