Triple the playable area and add a real story. Adding around 200 npcs to interact with/quest for throughout the solar system would be a nice start too. At least two more types of vehicles. Get rid of cheezy patrol missions and in place put in missions with depth. This game would take a huge leap from mediocre to awesome if they somehow added a part where you could fly your ships and engage in space battles as well as fight on the ground. If we are at war with these aliens then let us fight them. Not just run into small little patches of them here and there. I want to lead a six-man spaceship battle group against one of those huge ass ships the Fallen fly around in while another fire team is on the ground taking out the Fallen's satellite communications so they can't call for reinforcements. You add all that and you have yourself a great game you can play with your friends for a long, long time.