Modern Warfare 2 Multiplayer

This is the first video of Modern Warfare 2 Multiplayer. It looks like you can customize your own kill streaks. All they show as far as that is the ability to be the gunner in the AC130. The game still looks beautiful, the hud looks like it remained the same. The experience bar on the bottom, map in the top left. What caught my eye is the little satellite on the bottom right is that to let you know there is a UAV in the air?? Also the score count is on the bottom left and not at top like in MW1, and your options on the d-pad is now on the bottom right with your ammunition/grenades available and what seems like a compass. Wait I almost forgot the most important thing at the end of the video he stuck a guy with a grenade, I'm guessing you can do that through a new perk.