Black Ops Multiplayer Trailer?

I'm pretty sure there are a lot of black ops fans out there. Now that Treyarch has given us a taste of what the multiplayer will be like I would like to know what you guys think. I'm not get my hopes up for this game just to be disappointed like I was with Modern Warfare 2, but I will be purchasing it. Some of the things in the trailer looked balanced like the camera spike because it blocks out you UAV and the ballistic knife only gives you one knife that you have to pick up to reuse. The AC vehicle or how I like to call it, the Anti-Camper vehicle, does look like it will be a problem but not when I use it (: So let me know what you guys think :D