The Pavelow will count towards your next killstreak as long as you haven't died yet. In other words, if you are 9-0, it counts. If not, it will not count. Infinity Ward said they will patch it, but still waiting. The next patch is going to nerf the speed running/commando ppl running around with a care package flare that knife people extremely fast.
Also, the 1887 Akimbo Shotty's were nerfed, but if you run bling pro with them and have akimbo and FMJ as your attachments, they are still basically 1 shot killers from 50 yds away.
Add me on PSN, I play Ground War and Domination. PSN: Becnel