Plasma Blades

Halo RPG will hopeful have a Beta coming Spring! Basically Grenades are you cash. Frag=$5 Plasma=$20 Spike=$50 Flame=$100. You can custom create your house, Own your own Store or Resturant. Quests are in there too. Along with a Ranking System. You can have your friends stay at your house, and of course kill you friends in the Battle Grounds. But be careful there are robbers too. Elites will kill you and steal your money. Me and UDie are the Guardians. Meaning if you break any laws We'll ban hammer your ass. The beta will release spring. So you'll be the first one to see it exculsively!

Bungie.net : Halo 3 File Details

If this doesn't make you go wow, then I don't know what will. This is just a thirty second teaser of a whole entire game that plays out like this, and after constant testing, it plays like that basically all the time.