I checked out a few matches of the beta on Twitch
and it really looks promising.
Killstreaks are awesome and fun to watch.
Back in the day before COD Ghosts, which really sucked and was the last COD I played many years ago,
I always favored MW2, Black OPs, MW3 and Nuketown map getting kills with the little RC XD car and assault strikes, LOL
Also the Juggernaut was awesome to play in MW2, but difficult to reach 11 kills without getting killed
But I no longer play, I only watch IRL and games on Twitch, but not really lots of shooter related games these days....