HALO 1: concentrated on small teams, 2v2-4v4, and had small the large size maps that were simplistic, easy to get around which made gameplay better.HALO 2:destroyed teamwork by making the teams too big. How can a team of more than 4 work together? You cant, it makes the multiplayer an individual game. Furthermore the maps are too big with too many obstacles in them. They tried to make them cooler with better graphics, but what they did was they made them more complicated by uneven floors, walls etc etc.