But it doesn't show the actual number for the scorestreak. Apparently the number that pops up on the screen after you do something is the XP you earned.
The only thing they show involving the scorestreak is the scale on the bottom right, but I haven't found a video that was clear enough that shows the actual number.
The number that pops up is the points you are earning to your scorestreak, not the experience. The icons that show up in the middle (double kill, headshot, etc) are what represent extra XP. That is how I understand it, at any rate.
Looks like the multiplayer servers are up. You can find streams fairly easy now, which can be good or bad for people. Defiantly advice people that don't want anything spoiled, to avoid seraching anything online.
I guess I'm in the minority in that I love the gun noises. Although, they do seem to have added a lot of "extra"(a lot more fake communication and louder grenade blast it seems) noise. That is what I'm most worried about. I'll wait to play the game before I make a final judgement on it though because these opinions always change for me when I finally get it in my hands.