extra backpacks like one with twin cannons, and one with wings to increase flight time and efficiency, a mech with tank treads that give extra acceleration on the ground at the cost of being lousy in the air, (It's a tank. What did you expect?) And maybe some extra maps. Like one in an underground facility with multiple rooms and hallways big and small, multiple floors that you can toggle the number of, and the top floor having an exit to the outside, maybe even a jungle battlefield straight out of 08th MS team.