I didn't like the abilities at all, i mean running should not be an ability should be someting anyone could use. and i hate that the running gauge won't recover until you finish it. The jet pack should be an item not an ability, i hate that there are so many people flying around. The unvunerability and the invisibility should be an item just as in halo 3. But well the game is cool so far. Another thing i didn't liked was that you can choose a map out of 3 or so. because people will just choose the one they like and you always play in powerhouse.